July 2024 - AMSAT-BB - mailman.amsat.org

Upcoming ARISS Contact Schedule as of 2024-07-31 20:30 UTC
by aj9n＠aol.com 31 Jul '24

31 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-31 20:30 UTC Quick list of scheduled contacts and events: Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is AB1OC Contact was successful: Wed 2024-07-31 18:17:25 UTC 43 deg (***) Congratulations to the Kopernik Observatory students, Matthew, mentor AB1OC, and ground station K2ZRO! (***) Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg Aznakaevsky district of the Republic of Tatarstan, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sat 2024-08-03 14:40 UTC International Astronomical Union (IAU) General Assembly 2024, Cape Town, South Africa, telebridge via VK6MJ The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB, Jeanette Epps KF5QNU, Matthew Dominick KCØTOR, or Mike Barratt KD5MIJ The ARISS mentor is KA3HDO Contact is go for: Fri 2024-08-09 11:55:06 UTC 40 deg Watch for Livestream at https://astronomy2024.org/ A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-31 20:30 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-31 20:30 UTC. (***) https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 240 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 153 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1740. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1645. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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ARISS News Release No. 24-43
by David H Jordan 31 Jul '24

31 Jul '24

*ARISS News Release No.24-43* *Dave Jordan, AA4KN * *ARISS PR* *aa4kn(a)amsat.org <aa4kn(a)amsat.org>* *FOR IMMEDIATE RELEASE* *ARISS Contact is Scheduled with Students at * *SMPIT Nurul Ishlah, Banda Aceh, Indonesia* July 30, 2024—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students at the various schools located in the Indian Ocean region. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS. This ARISS contact is part of the Tsunami United initiative, an educational project with UNESCO, which is engaging students about tsunami risk and ocean resilience in the Indian Ocean region and as part of the 20th commemoration of the December 26, 2004 Indian Ocean tsunami. Participating students are from 12 countries in the Indian Ocean region which include the Maldives, Indonesia, South Africa, Bangladesh, Kenya, Madagascar, United Arab Emirates, Pakistan, Timor-Leste, Mauritius, and Myanmar. This will be a telebridge Contact via Amateur Radio allowing students to ask their questions of astronaut Sunita Williams, amateur radio call sign KD5PLB. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the telebridge station. The ARISS amateur radio ground station (telebridge station) for this contact is in Andergrove, Mackay, Queensland, Australia. The amateur radio volunteer team at the ground station will use the callsign VK4ISS, to establish and maintain the ISS connection. The ARISS radio contact is scheduled for August 2, 2024 at 7:43 pm WIB (Jakarta, Indonesia) (12:43:07 UTC,8:43 am EDT, 7:43 am CDT, 6:43 am MDT, 5:43 am PDT). *_______________________________* As time allows, students will ask these questions: 1. What type of research do you conduct in space? 2. How do you monitor the ocean from space? 3. How are space and the ocean connected to each other? 4. Can you see disasters from space and did you witness any particular event? 5. Were the effects of the 2004 tsunami visible from space? 6. How can space monitoring help protect life and species in the ocean? 7. Do you study natural coastal barriers, like mangroves and coral reefs? 8. How do you cooperate with other astronauts in space? 9. What advice would you give to young people interested in science? 10. Can satellite technology help improve tsunami early warning systems? 11. How does living in space affect your body and mind? 12. What is it like to be an astronaut? 13. Have you seen a cyclone from space? 14. When you were my age, 15, did you dream of becoming an astronaut? 15. What training do astronauts undergo before going to space? 16. As an astronaut, which do you consider presents a greater risk: the ocean or outer space? *About ARISS:* Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the ISS. In the United States, sponsors are the American Radio Relay League (ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur Satellite Corporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN) and the ISS National Lab—Space Station Explorers. The primary goal of ARISS is to promote exploration of science, technology, engineering, the arts, and mathematics topics. ARISS does this by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students. Before and during these radio contacts, students, educators, parents, and communities take part in hands-on learning activities tied to space, space technologies, and amateur radio. For more information, see http://www.ariss.org. Media Contact: Dave Jordan, AA4KN ARISS PR Find us on social media at: X: ARISS_Intl Facebook: facebook.com/ARISSIntl Instagram: ariss_intl Mastodon: ariss_intl(a)mastodon.hams.social Check out ARISS on Youtube.com.

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TEVEL-2
by david.greenberg 30 Jul '24

30 Jul '24

Hello All,TEVEL-2 FM transponder has been activated, starting from today 30.07.24 20:29U for 72 hours.One of the participating schools is planing to download telemetry data from TEVEL-2. Please use the transponder.73,David 4X1DGנשלח מה-Galaxy שלי

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Upcoming ARISS Contact Schedule as of 2024-07-29 18:00 UTC
by aj9n＠aol.com 29 Jul '24

29 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-29 18:00 UTC Quick list of scheduled contacts and events: Nizhnekamsk schools, Nizhnekamsk, Republic of Tatarstan, Russia, direct via RC4P The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact was successful Sat 2024-07-27 13:50 UTC (***) Congratulations to the Nizhnekamsk school students, Aleksandr, mentor RV3DR, and ground station RC4P! (***) Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact was successful: Mon 2024-07-29 10:52:51 UTC 53 deg (***) Congratulations to the Narayama ARISS School students, Mike, mentor 7M3TJZ, and ground station JK3ZNB! (***) Watch for Livestream at https://www.youtube.com/watch?v=BQrUHun__6o Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg Aznakaevsky district of the Republic of Tatarstan, Russia, direct via TBD (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sat 2024-08-03 14:40 UTC (***) International Astronomical Union (IAU) General Assembly 2024, Cape Town, South Africa, telebridge via VK6MJ (***) The ISS callsign is presently scheduled to be NA1SS (***) The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB, Jeanette Epps KF5QNU, Matthew Dominick KCØTOR, or Mike Barratt KD5MIJ The ARISS mentor is KA3HDO Contact is go for: Fri 2024-08-09 11:55:06 UTC 40 deg (***) Watch for Livestream at https://astronomy2024.org/ A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-29 18:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-29 18:00 UTC. (***) https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 240 (***) Francesco IKØWGF with 154 Satoshi 7M3TJZ with 153 (***) Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1739. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1644. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: ARISS News Release No. 24-42
by samuel galet 29 Jul '24

29 Jul '24

I will be monitoring the contact on Wednesday to the Kopernik laboratory. When the transmissions and contact are finished if the astronaut switches to the cross band repeaterand is free I will be there to try to make a qso with them from fn35cl as they pass over my qth in quebec canada.Can you please pass on my message to the ISS. Thank you. 73 de VE2LJV Samuel Galet Sent from my Galaxy -------- Original message -------- From: David H Jordan via AMSAT-BB <amsat-bb(a)amsat.org> Date: 2024-07-28 4:02 p.m. (GMT-05:00) To: amsat-bb(a)amsat.org Subject: [AMSAT-BB] ARISS News Release No. 24-42 ARISS News Release No.24-42 Dave Jordan, AA4KN ARISS PR aa4kn(a)amsat.org<mailto:aa4kn@amsat.org> FOR IMMEDIATE RELEASE ARISS Contact is Scheduled with Students at Kopernik Observatory, Vestal, New York, USA July 28, 2024—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students at the Kopernik Observatory located in Vestal, NY. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS. The Kopernik Observatory & Science Center is a non-profit informal educational institution that promotes interdisciplinary education in the fields of Science, Technology, Engineering and Mathematics (STEM). This year is the 32nd summer of Kopernik STEM camps for students between 2nd and 12th grades. One of the camps offered this summer is entitled “Welcome Aboard the ISS”, where rising 5th and 6th grade students will learn about what it takes to become an astronaut, how they train for a mission and what research is being done on the ISS. Opened in 1974, Kopernik is celebrating its 50th anniversary as a STEM education resource in the region. Kopernik’s resources include three permanent telescopes, a heliostat, weather station, three classrooms, computer lab, portable planetarium and amateur radio station (K2ZRO). It also offers an outreach program in which its educators bring programs directly into the classroom. Kopernik is the home of the Kopernik Astronomical Society and the Binghamton Amateur Radio Association (W2OW) whose members are supporting observatory staff in the set up and radio station operation during this ARISS contact. This will be a direct contact via amateur radio allowing students to ask their questions of astronaut Matthew Dominick, amateur radio call sign KC0TOR. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the relay ground station. The amateur radio ground station for this contact is in Vestal, NY. Amateur radio operators using call sign K2ZRO, will operate the ground station to establish and maintain the ISS connection. The ARISS radio contact is scheduled for July 31, 2024 at 2:17:25 pm EDT (NY) (18:17:25 UTC, 1:17 pm CDT, 12:17 pm MDT, 11:17 am PDT). The public is invited to watch the live stream at: https://youtube.com/live/Tv3x3D0DTzU?feature=share<https://url.emailprotection.link/?bueTFlxqVySi5mUb9gUTKzUtagUq9vR9TfWMA3gn_…> _______________________________ As time allows, students will ask these questions: 1. How does training underwater compare to the feeling of weightlessness in space? Does it actually feel pretty similar? 2. Looking out to space from the ISS, in what ways does it look different from a night sky on Earth? 3. Is artificial gravity just science fiction or a possibility in the future? 4. Does the ISS have any engine powering it forward? 5. How did they keep the ISS in orbit before there were astronauts on it and in between missions? 6. If the sun is the center of our solar system, and gives heat and light to the other planets, why is space cold and dark and not bright and hot? 7. What does a sunrise look like on the ISS? 8. What does Space sound like? 9. How long was your training for this ISS mission? 10. What's it feel like to experience a rocket launch? 11. What was your inspiration to want to become an astronaut? 12. What is the most challenging thing you have encountered as an astronaut on the ISS? Did you create a solution or overcome it? 13. How do you get enough air on the International Space Station? 14. Do you eat food from a bag? 15. Can I go to space? 16. Is it hard or easy to pick things up in the vacuum of space? 17. What is the greatest danger on your mission? 18. What is it like in space (compared to earth)? 19. Can animals survive at ISS? About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the ISS. In the United States, sponsors are the American Radio Relay League (ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur Satellite Corporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN) and the ISS National Lab—Space Station Explorers. The primary goal of ARISS is to promote exploration of science, technology, engineering, the arts, and mathematics topics. ARISS does this by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students. Before and during these radio contacts, students, educators, parents, and communities take part in hands-on learning activities tied to space, space technologies, and amateur radio. For more information, see http://www.ariss.org<http://www.ariss.org/>. Media Contact: Dave Jordan, AA4KN ARISS PR Find us on social media at: X: ARISS_Intl Facebook: facebook.com/ARISSIntl<http://facebook.com/ARISSIntl> Instagram: ariss_intl Mastodon: ariss_intl(a)mastodon.hams.social Check out ARISS on Youtube.com.

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ARISS News Release No. 24-42
by David H Jordan 28 Jul '24

28 Jul '24

*ARISS News Release No.24-42* *Dave Jordan, AA4KN * *ARISS PR* *aa4kn(a)amsat.org <aa4kn(a)amsat.org>* *FOR IMMEDIATE RELEASE* *ARISS Contact is Scheduled with Students at * *Kopernik Observatory, Vestal, New York, USA* July 28, 2024—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students at the Kopernik Observatory located in Vestal, NY. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS. The Kopernik Observatory & Science Center is a non-profit informal educational institution that promotes interdisciplinary education in the fields of Science, Technology, Engineering and Mathematics (STEM). This year is the 32nd summer of Kopernik STEM camps for students between 2nd and 12th grades. One of the camps offered this summer is entitled “Welcome Aboard the ISS”, where rising 5th and 6th grade students will learn about what it takes to become an astronaut, how they train for a mission and what research is being done on the ISS. Opened in 1974, Kopernik is celebrating its 50th anniversary as a STEM education resource in the region. Kopernik’s resources include three permanent telescopes, a heliostat, weather station, three classrooms, computer lab, portable planetarium and amateur radio station (K2ZRO). It also offers an outreach program in which its educators bring programs directly into the classroom. Kopernik is the home of the Kopernik Astronomical Society and the Binghamton Amateur Radio Association (W2OW) whose members are supporting observatory staff in the set up and radio station operation during this ARISS contact. This will be a direct contact via amateur radio allowing students to ask their questions of astronaut Matthew Dominick, amateur radio call sign KC0TOR. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the relay ground station. The amateur radio ground station for this contact is in Vestal, NY. Amateur radio operators using call sign K2ZRO, will operate the ground station to establish and maintain the ISS connection. The ARISS radio contact is scheduled for July 31, 2024 at 2:17:25 pm EDT (NY) (18:17:25 UTC, 1:17 pm CDT, 12:17 pm MDT, 11:17 am PDT). The public is invited to watch the live stream at: *https://youtube.com/live/Tv3x3D0DTzU?feature=share <https://url.emailprotection.link/?bueTFlxqVySi5mUb9gUTKzUtagUq9vR9TfWMA3gn_…>* *_______________________________* As time allows, students will ask these questions: 1. How does training underwater compare to the feeling of weightlessness in space? Does it actually feel pretty similar? 2. Looking out to space from the ISS, in what ways does it look different from a night sky on Earth? 3. Is artificial gravity just science fiction or a possibility in the future? 4. Does the ISS have any engine powering it forward? 5. How did they keep the ISS in orbit before there were astronauts on it and in between missions? 6. If the sun is the center of our solar system, and gives heat and light to the other planets, why is space cold and dark and not bright and hot? 7. What does a sunrise look like on the ISS? 8. What does Space sound like? 9. How long was your training for this ISS mission? 10. What's it feel like to experience a rocket launch? 11. What was your inspiration to want to become an astronaut? 12. What is the most challenging thing you have encountered as an astronaut on the ISS? Did you create a solution or overcome it? 13. How do you get enough air on the International Space Station? 14. Do you eat food from a bag? 15. Can I go to space? 16. Is it hard or easy to pick things up in the vacuum of space? 17. What is the greatest danger on your mission? 18. What is it like in space (compared to earth)? 19. Can animals survive at ISS? *About ARISS:* Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the ISS. In the United States, sponsors are the American Radio Relay League (ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur Satellite Corporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN) and the ISS National Lab—Space Station Explorers. The primary goal of ARISS is to promote exploration of science, technology, engineering, the arts, and mathematics topics. ARISS does this by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students. Before and during these radio contacts, students, educators, parents, and communities take part in hands-on learning activities tied to space, space technologies, and amateur radio. For more information, see http://www.ariss.org. Media Contact: Dave Jordan, AA4KN ARISS PR Find us on social media at: X: ARISS_Intl Facebook: facebook.com/ARISSIntl Instagram: ariss_intl Mastodon: ariss_intl(a)mastodon.hams.social Check out ARISS on Youtube.com.

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Upcoming ARISS Contact Schedule as of 2024-07-28 02:30 UTC
by aj9n＠aol.com 28 Jul '24

28 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-28 02:30 UTC Quick list of scheduled contacts and events: Nizhnekamsk schools, Nizhnekamsk, Republic of Tatarstan, Russia, direct via RC4P The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:50 UTC Did anyone listen in on this contact? If so, please let me know if it was successful. (***) Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact was successful: Sat 2024-07-27 18:24:08 UTC 41 deg (***) Congratulations to the Arizona Science Center students, Matthew, mentor K4RGK, telebridge AB1OC, and moderator KD8COJ! (***) Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:52:51 UTC 53 deg Watch for Livestream at https://www.youtube.com/watch?v=BQrUHun__6o (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR (***) The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-28 02:30 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-28 02:30 UTC. (***) https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1737. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1642. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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CATSAT HF+UHF Satellite w/3m diam. inflatable antenna
by Pedro Converso 28 Jul '24

28 Jul '24

Launched from Vandenberg aboard a Firefly vector in July. Info, passes and frec: http://amsat.org.ar/pass?satx=catsat Thanks Univ. of Arizona for this amateur satellite ! 73, lu7abf, Pedro

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ANS-210 AMSAT News Service Weekly Bulletins
by Mitch Ahrenstorff (AD0HJ) 28 Jul '24

28 Jul '24

AMSAT NEWS SERVICE ANS-210 In this edition: * TEVEL Satellites Begin Atmospheric Reentry and Decommissioning * Ariane 6 Launches PariSat: Young Engineers Test Heat Dissipation * SpaceX to Develop Enhanced Dragon Spacecraft for ISS Deorbit * GridMasterMap Satellite Top 100 Rovers August 2024 Rankings * Changes to AMSAT-NA TLE Distribution for July 26, 2024 * ARISS News * Upcoming Satellite Operations * AMSAT Ambassador Activities * Satellite Shorts From All Over The AMSAT News Service bulletins are a free, weekly news and information service of AMSAT, the Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites. The news feed on https://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it. Please send any amateur satellite news or reports to: ans-editor [at] amsat.org<http://amsat.org> You can sign up for free e-mail delivery of the AMSAT News Service Bulletins via the ANS List; to join this list see: https://mailman.amsat.org/postorius/lists/ans.amsat.org/ ANS-210 AMSAT News Service Weekly Bulletins To: All RADIO AMATEURS From: Radio Amateur Satellite Corporation 712 H Street NE, Suite 1653 Washington, DC 20002 DATE 2024 Jul 28 ________________________________ TEVEL Satellites Begin Atmospheric Reentry and Decommissioning The TEVEL satellite project, featuring a series of CubeSats designed and built by Israeli students, has entered its final phase with the beginning of atmospheric reentry and decommissioning. This initiative, a collaboration between the Israel Space Agency (ISA) and Tel Aviv University, has been a key educational tool, providing practical experience in satellite technology to students across Israel. Launched in January 2022 on the SpaceX Falcon 9 Transporter-3 mission, the TEVEL satellites were part of a broader effort to promote STEM education. The CubeSats, built to the 10x10x10 cm standard, were used for various missions including scientific data collection, amateur radio communication, and technology experimentation. The project aimed to enhance students' understanding of satellite technology and prepare them for careers in the space industry. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Students-Assembl…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Students-Assembl…> Students assembling a satellite as part of the TEVEL program. [Credit: Israel Space Agency] In addition to their educational value, the TEVEL satellites played a significant role in the amateur radio community. Equipped with radio transponders, they allowed amateur radio operators worldwide to communicate via satellite, fostering international collaboration and technological experimentation. This feature provided a unique platform for enthusiasts to engage in satellite communication. As the satellites now re-enter Earth's atmosphere, this phase marks the end of their operational lives. The reentry process, which involves the satellites burning up upon reentry to prevent space debris, is being monitored by both educational teams and the broader space community. This final stage offers a valuable learning opportunity for students tracking the satellites' descent and analyzing the data. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/TEVEL-One-Throug…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/TEVEL-One-Throug…> All eight TEVEL CubeSats are expected to decay from orbit in the next few weeks. [Credit: Nanosats.eu] Looking ahead, David Greenberg, 4X1DG, has announced a new TEVEL mission featuring nine additional satellites, continuing the educational and amateur radio goals of the original initiative. The decommissioning of the TEVEL satellites highlights the importance of responsible satellite disposal to minimize space debris and ensure the sustainability of space operations. The success of the TEVEL project sets a precedent for future educational satellite initiatives, demonstrating how hands-on learning can be integrated with practical space missions. As the satellites complete their final descent, they leave behind a legacy of inspiration and international collaboration in both educational and amateur radio fields. [ANS thanks Lorenzo Gianlorenzi, IU1BOT, Vashradio.org<https://vashradio.org/>, for the above information] ________________________________ Ariane 6 Launches PariSat: Young Engineers Test Heat Dissipation On July 9, 2024, Europe's newest rocket, the Ariane 6, launched with a range of missions on board, each with unique objectives and dedicated teams. Among these missions was PariSat, a project that highlights the ingenuity and dedication of the Garef Aérospatial club. This amateur space club, comprised of young engineers aged 15 to 25, has been working diligently on satellite testing, with the goal of exploring how different materials handle heat dissipation in space. The core of the PariSat experiment is to determine which materials are most effective at dissipating heat in the harsh environment of space. The project, however, is not just about the scientific results but also about the educational journey for the young engineers involved. Based in a modest building near the Georges Carpentier stadium in Paris's 13th district, the club members work after school, applying their passion for space to design and build their satellite experiment. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/PariSat_Captures…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/PariSat_Captures…> Earth image captured by an adapted GoPro camera used on PariSat. [Credit: Garef Aérospatial] PariSat features eight small square plates, each just 4 cm wide, which function as space radiators. These plates were chosen to test various properties such as material composition and color, and their responses to heating and cooling. Equipped with temperature sensors, each plate provided data on "black-body radiation" during the nearly three-hour flight of Ariane 6's upper stage. This data will help validate the Stefan-Boltzmann law of thermal radiation, a principle discovered in 1884. In addition to the scientific experiment, PariSat includes a photo component. The team has adapted a GoPro camera for space use, which is controlled by a module entirely designed by Garef Aérospatial. This camera, featuring a fisheye lens, captured stunning images of Earth, showcasing the planet's curvature and adding a visual dimension to the mission. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Ariane_6_Payload…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Ariane_6_Payload…> Five experiments gathered data while attached to the Ariane 6's upper stage during its inaugural flight. [Credit: ESA] PariSat is part of a larger set of five experiments, including Peregrinus, Sidloc, LiFi, and YPSat, which also remained attached to the Ariane 6's upper stage during its three-hour flight. These experiments gathered data as the upper stage's orbit was adjusted by the Vinci engine, which can be restarted multiple times. The collected data was transmitted back to Earth and received by the Swedish Space Corporation's telemetry station in Kiruna, Sweden. As the Garef Aérospatial team begins analyzing the data, the PariSat mission serves as a testament to the capabilities of young engineers and highlights the potential for youth-led initiatives in space science. With this mission, the team looks forward to future projects, driven by the experiences and successes gained from their participation in Ariane 6's first flight. [ANS thanks the European Space Agency<https://www.esa.int/> and Garef Aérospatial<https://garef.com/> for the above information] ________________________________ The 2024 AMSAT President's Club coins are here now! Help Support GOLF and Fox Plus [https://www.amsat.org/wordpress/wp-content/uploads/2024/01/2024-Coin-Both_5…] Join the AMSAT President's Club today and help Keep Amateur Radio in Space! https://www.amsat.org/join-the-amsat-presidents-club/ ________________________________ SpaceX to Develop Enhanced Dragon Spacecraft for ISS Deorbit SpaceX will develop an enhanced version of its Dragon spacecraft for NASA to deorbit the International Space Station (ISS) at the end of its operational life. This development comes as part of a contract awarded to SpaceX on June 26, valued at up to $843 million. The new spacecraft, known as the United States Deorbit Vehicle (USDV), was detailed by NASA and SpaceX officials at a briefing on July 17th. The USDV will be based on SpaceX's existing Dragon spacecraft but will feature a redesigned and larger trunk section with additional thrusters. Specifically, the USDV will have 46 Draco thrusters, including 16 for attitude control and 30 for the maneuvers required to lower the ISS's orbit. Sarah Walker, SpaceX's director of Dragon mission management, explained that the enhanced trunk section is twice as long as the regular one. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/SpaceX-United-St…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/SpaceX-United-St…> NASA presented the concept of the US Deorbiting Vehicle designed by SpaceX on July 17th. [Credit: SpaceX] The new trunk will house engines, propellant tanks, power generation, and other systems, storing six times the propellant of the current Dragon spacecraft and generating three to four times the power. "It's almost a spacecraft in and of itself," Walker noted. Once completed, NASA will own and operate the USDV, which will be launched to the ISS shortly after the station's final crew arrives. After its arrival and successful checkout, ISS controllers will allow the station's orbit to naturally decay. The final crew will depart when the station's altitude decreases from its current 400 kilometers to 330 kilometers. The ISS's orbit will continue to decay over approximately six months before NASA uses the USDV for a final controlled deorbit, targeting a remote ocean corridor about 2,000 kilometers long. [https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Crew-6-Dragon-Ca…]<https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Crew-6-Dragon-Ca…> The SpaceX Dragon capsule Endeavour which flew the Crew-6 mission on March 2nd, 2023. [Credit: SpaceX] Dana Weigel, NASA ISS program manager, mentioned that debris from the station, ranging in size from a microwave oven to a sedan, is expected to survive reentry and splash down in this corridor. The USDV will have an estimated mass of over 30,000 kilograms, including 16,000 kilograms of propellant. Due to its size, it will require a heavier class of rocket than the Falcon 9 currently used for Dragon missions. NASA plans to procure the launch vehicle separately at least three years before the launch. SpaceX expressed readiness to support the launch if given the opportunity. Northrop Grumman was the only other company to bid on the USDV. NASA's source selection statement indicated that Northrop's bid was significantly higher in price and rated lower in both mission suitability and past performance compared to SpaceX. Ken Bowersox, NASA associate administrator for space operations, expressed satisfaction with the proposals received, noting he was pleased with the submissions from SpaceX and Northrop Grumman. [ANS thanks Jeff Foust, Spacenews.com<https://spacenews.com/>, for the above information] ________________________________ GridMasterMap Satellite Top 100 Rovers August 2024 Rankings The August 2024 rankings for the Top 100 Rovers (Mixed LEO/MEO/GEO) in satellite operations, as determined by @GridMasterMap<https://x.com/GridMasterMap> on Twitter, has been released. The ranking is determined by the number of grids and DXCC entities activated, taking into account only those grids where a minimum number of QSOs logged on the gridmaster.fr<https://gridmaster.fr> website have been validated by a third party. Grid numbers do not directly reflect the exact number of activations. Satellite operators are encouraged to upload their LoTW satellite contacts to https://gridmaster.fr in order to provide more accurate data. Updated: 2024-07-26 1 ND9M 26 LU5ILA 51 N4AKV 76 AA8CH 2 NJ7H 27 N5BO 52 AC0RA 77 VE1VOX 3 JA9KRO 28 K8BL 53 EA4NF 78 FG8OJ 4 N5UC 29 DL2GRC 54 JL3RNZ 79 PT9BM 5 UT1FG 30 KE4AL 55 AA5PK 80 KI7UXT 6 OE3SEU 31 VE3HLS 56 SP5XSD 81 YU0W 7 DL6AP 32 KB5FHK 57 F4DXV 82 KJ7NDY 8 WI7P 33 KI7UNJ 58 AD7DB 83 KB2YSI 9 DP0POL 34 LA9XGA 59 KI7QEK 84 WA9JBQ 10 K5ZM 35 JO2ASQ 60 VE1CWJ 85 N6UTC 11 N6UA 36 F4BKV 61 KE9AJ 86 N4DCW 12 HA3FOK 37 PA3GAN 62 XE1ET 87 N0TEL 13 WY7AA 38 N7AGF 63 VA7LM 88 JM1CAX 14 N9IP 39 KI0KB 64 N8RO 89 VE3GOP 15 W5PFG 40 VK5DG 65 KM4LAO 90 K0FFY 16 AK8CW 41 XE3DX 66 SM3NRY 91 CU2ZG 17 AD0DX 42 K7TAB 67 N4UFO 92 KG4AKV 18 F5VMJ 43 KE0WPA 68 W1AW 93 VE7PTN 19 WD9EWK 44 KE0PBR 69 DL4EA 94 AF5CC 20 AD0HJ 45 VA3VGR 70 PT2AP 95 K6VHF 21 ND0C 46 PR8KW 71 W8LR 96 VE6WK 22 DJ8MS 47 W7WGC 72 M1DDD 97 W8MTB 23 ON4AUC 48 N6DNM 73 HB9GWJ 98 DK9JC 24 KX9X 49 EB1AO 74 DF2ET 99 PT9ST 25 KG5CCI 50 JK2XXK 75 LU4JVE 100 VO2AC [ANS thanks @GridMasterMap<https://x.com/GridMasterMap> for the above information] ________________________________ Need new satellite antennas? Purchase an M2 LEO-Pack from the AMSAT Store!<https://www.amsat.org/shop/> [https://www.amsat.org/wordpress/wp-content/uploads/cm/LEO-Pack1-300x298.png]<https://www.amsat.org/product/m2-leo-pack-antenna-system/> When you purchase through AMSAT, a portion of the proceeds goes towards Keeping Amateur Radio in Space. https://amsat.org/product-category/hardware/ ________________________________ Changes to AMSAT-NA TLE Distribution for July 26, 2024 Two Line Elements or TLEs, often referred to as Keplerian elements or keps in the amateur community, are the inputs to the SGP4 standard mathematical model of spacecraft orbits used by most amateur tracking programs. Weekly updates are completely adequate for most amateur satellites. TLE bulletin files are updated daily in the first hour of the UTC day. New bulletin files will be posted immediately after reliable elements become available for new amateur satellites. More information may be found at https://www.amsat.org/keplerian-elements-resources/. The following satellite has been removed from this week's AMSAT TLE distribution: TEVEL-6 NORAD Cat ID 50999 Decayed from orbit on or about 19 July 2024 The following satellite has been added to this week's AMSAT TLE distribution: CatSat NORAD Cat ID 60246 Downlinks on 437.185 MHz and 10470.00 MHz have been coordinated [ANS thanks AMSAT Orbital Elements page for the above information] ________________________________ ARISS NEWS Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide. + Recently Completed Contacts Nizhnekamsk schools, Nizhnekamsk, Republic of Tatarstan, Russia, direct via RC4P The ISS callsign was RSØISS The scheduled crewmember was Aleksandr Grebyonkin RZ3DSE The ARISS mentor was RV3DR Contact was successful: Sat 2024-07-27 13:50 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign was NA1SS The scheduled crewmember was Matthew Dominick KCØTOR The ARISS mentor was K4RGK Contact was successful: Sat 2024-07-27 18:24:08 UTC + Upcoming Contacts Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 11:03:33 UTC Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD The ISS callsign is presently scheduled to be RSØISS The scheduled crewmember is Nikolay Chub The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down). If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. The packet system is also active (145.825 MHz up & down). As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html [ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information] ________________________________ Upcoming Satellite Operations Posted July 21st by @W8LR_Jerry<https://x.com/W8LR_Jerry> on X (formerly Twitter): EM57/58 and EM67/68 are still planned for Aug 2/3. Please check hams.at<https://hams.at> and @W8LR_Jerry<https://x.com/W8LR_Jerry> for updates. As I mentioned two months ago EM85 in TN will now be in my travel schedule beginning in Sept. I was just notified today. I will be doing FM/Linear/GC when there. More later. Posted July 23rd by @SeanKutzko<https://x.com/SeanKutzko> KX9X on X (formerly Twitter): A reminder that I'm leaving for Hawaii this Friday! Will be on SSB / FM sats *holiday style* plus maybe some QRP FT8. No GreenCube, sorry. Will post passes here and to hams.at<https://hams.at> soon. #HamRadio @AMSAT<https://x.com/AMSAT> #AMSAT Posted July 25th by @AD0HJ<https://x.com/AD0HJ> on X (formerly Twitter): Work trip coming up the first full week of August in Fort Collins, Colorado. Will make stops on the EN02/EN03 | DN82/DN92 grid lines on the drive out. DN90/DN91 | EN20/EN30 grid lines on the way back. RS-44 satellite passes in the evenings. Posted at hams.at<https://hams.at>. Posted July 26th by @AMSAT-UK<https://x.com/AmsatUK> on X (formerly Twitter): 7E4K IOTA Expedition to Ketawai Island (OC-144, locator OI37dr) will be on various satellites (LEO, MEO and GEO). Please visit the website for schedule: https://7e4k.com 73 de Yono - YD0NXX ORARI HQ, Satellite Division #amsat #hamradio #hamr Jonathan @N4AKV_<https://x.com/N4AKV_> has posted an ambitious August roving schedule on his qrz.com<http://qrz.com> page. Tentative plans for a major satellite and 6m road trip through Maine, Nova Scotia, Newfoundland, and St. Pierre and Miquelon this summer. Satellite passes listed on hams.at<https://hams.at> for the next week include grid squares FN43, FN53, and GN16. A growing number of satellite rovers are currently engaged in sharing their grid square activations on https://hams.at. By visiting the website, you gain easy access to comprehensive information about the operators responsible for activating specific grid squares. Additionally, you have the ability to assess the match score between yourself and a particular rover for a given pass, while also being able to identify the upcoming satellite passes that are accessible from your location. [ANS thanks Ian Parsons, K5ZM, AMSAT rover page manager, for the above information] ________________________________ AMSAT Ambassador Activities AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events. 2024 KARS / ARRL Idaho State Convention - August 3, 2024 2130 North Meyer Road Post Falls, ID 83854 https://k7id.org/article/StateConvention2024?classification=Info Huntsville Hamfest - August 17th and 18th, 2024 Von Braun Center South Hall 700 Monroe Street SW Huntsville, AL 35801 https://hamfest.org/ AMSAT Booth and Forum / N8DEU and W4FCL Northeast HamXpostion - August 22nd thru 25th, 2024 Best Western Royal Plaza Hotel & Trade Center 181 Boston Post Road West Marlborough, MA 01752 https://hamxposition.org/ Greater Louisville Hamfest - September 7th, 2024 Paroquet Springs Conference Centre 395 Paroquet Springs Drive Shepherdsville, KY 40165 https://louisvillehamfest.wixsite.com/louisvillehamfest AMSAT Forum and Information Table / W4FCL North Star Radio Convention - October 5th, 2024 Hennepin Technical College (North Campus) 9000 Brooklyn Boulevard Brooklyn Park, MN 55445 https://conv2023.tcfmc.org/ AMSAT Forum and Information Table / KØJM and ADØHJ Central Kentucky Hamfest - October 5th, 2024 Highlands Baptist Church 2032 Parallel Road Lexington, KY 40502 https://www.facebook.com/w9khz/ AMSAT and Educational Satellites Forum and Information Table / AI4SR and W4FCL 2024 AMSAT Space Symposium and Annual General Meeting - October 25th thru 27th, 2024 Doubletree by Hilton Tampa Rocky Point Waterfront 3050 N Rocky Point Drive West Tampa, FL 33607 https://www.amsat.org/ Stone Mountain Hamfest, ARRL State Convention - November 2nd and 3rd, 2024 Gwinnett County Fairgrounds 2405 Sugarloaf Parkway Lawrenceville, GA 30042 https://stonemountainhamfest.com/ [ANS thanks Bo Lowrey, W4FCL, Director - AMSAT Ambassador Program, for the above information] ________________________________ Want to fly the colors on your own grid expedition? Get an AMSAT car flag and other neat stuff from our Zazzle store<https://www.zazzle.com/store/amsat_gear>! 25% of the purchase price of each product goes towards Keeping Amateur Radio in Space [https://www.amsat.org/wordpress/wp-content/uploads/2024/01/AMSAT-Car-Flag-e…]<https://www.zazzle.com/amsat_car_flag-256716714380264543> Keeping Amateur Radio in Space https://www.zazzle.com/amsat_gear ________________________________ Satellite Shorts From All Over + ASRTU-1 is a 12U CubeSat mission developed by students from the Harbin Institute of Technology and Bauman State Technical University. It is designed for educational purposes and features an amateur radio SDR payload. The satellite will offer telecommand uplink and telemetry/digital image downlink capabilities. Harbin Institute of Technology, known for developing successful amateur radio satellites like LilacSat-2 and DSLWP-B, has created a new SDR-based transceiver for ASRTU-1. This transceiver will provide communication resources, including a V/U FM transponder, UHF telemetry downlink, and a 10.5G image downlink. Scheduled to launch from Vostochny Cosmodrome on November 2024, ASRTU-1 will operate in a 530km sun-synchronous orbit with coordinated downlinks on 436.210 MHz, 435.400 MHz, and 10460.00 MHz and a repeater uplink on 145.875 MHz. (ANS thanks @AKAhamradio<https://x.com/AKAhamradio>, X.com<https://x.com/>, for the above information) + SpaceX successfully test-fired the engines on its Super Heavy booster on July 15, 2024, in preparation for the fifth integrated flight test (IFT-5) of its Starship vehicle. This upcoming launch, expected in August, will be the most ambitious to date and aims to build on the success of previous flights. The Super Heavy booster, measuring 233 feet tall, fired its 33 Raptor engines at full thrust for about 20 seconds during the static test at SpaceX's Starbase facility in Texas. Starship, which has been selected by NASA for the Artemis 3 lunar mission, is designed as a fully reusable system capable of carrying humans to Mars. Unlike SpaceX's Falcon 9, the Super Heavy booster is intended to return directly to its launch pad, where it will be caught midair by the launch tower's "chopstick" arms. With each test flight achieving progressively more, SpaceX aims to test the booster catch system in the upcoming launch, marking a significant advance towards rapid reusability and future missions. (ANS thanks Josh Dinner, Space.com<https://www.space.com/>, for the above information) + The 188,000-pound, 212-foot-tall core stage for the Artemis-2 moon mission has arrived at NASA's Kennedy Space Center (KSC) following a 900-mile journey from Michoud Assembly Facility in New Orleans. This milestone marks a significant step in preparing for the Artemis-2 mission, which aims to return humans to the moon for the first time in over fifty years. NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen are slated to launch on this mission as early as September 2025. Upon arrival at KSC, the core stage was transferred to a self-propelled transporter and moved into the iconic Vehicle Assembly Building (VAB). Engineers will soon begin processing the stage for stacking operations, involving the integration of the twin Solid Rocket Boosters (SRBs) and the spacecraft. The Space Launch System (SLS) rocket's twin boosters and the core stage's four RS-25 engines will generate nearly 9 million pounds of thrust at liftoff, propelling Artemis-2 and its crew to the moon. (ANS thanks Mike Killian, AmericaSpace.com<https://www.americaspace.com/>, for the above information) + NASA astronauts Butch Wilmore and Sunita Williams will remain at the International Space Station (ISS) with no set return date due to ongoing technical issues with Boeing's Starliner capsule. The astronauts departed for the ISS in early June on a test mission expected to last about a week, but faulty thrusters and helium leaks have delayed their return. Despite some thrusters now functioning normally and the leaks being stable, NASA and Boeing are still not ready to schedule their departure. NASA assures that the astronauts are not stranded and the technical issues do not pose a threat to the mission. Engineers are conducting tests, including on a spare thruster in New Mexico, to understand and resolve the problems. Steve Stich, NASA's commercial crew program manager, emphasized the priority of the astronauts' safety and the consideration of backup return options. (ANS thanks Anna Betts, The Guardian<https://www.theguardian.com/>, for the above information) + SpaceX is set to resume Falcon 9 launches as early as July 27 following the completion of an investigation into an upper stage anomaly from the July 11 launch. The mishap, which resulted in the rocket's upper stage failing to perform a second burn and stranding Starlink satellites in a low orbit, was attributed to a liquid oxygen leak caused by a cracked sense line. This crack was due to engine vibration fatigue and a loose clamp. The resulting leak led to ice buildup and excessive cooling of engine components, causing a hard start and subsequent damage to the engine hardware. SpaceX has implemented immediate fixes and proposed long-term solutions, and the FAA has determined that there are no public safety issues, allowing launches to proceed. SpaceX is targeting July 27 for the next launch, with two more launches tentatively scheduled for July 28. (ANS thanks Jeff Foust, SpaceNews<https://spacenews.com/>, for the above information) ________________________________ Join AMSAT today at https://launch.amsat.org/ In addition to regular membership, AMSAT offers membership to: * Societies (a recognized group, clubs or organization). * Primary and secondary school students are eligible for membership at one-half the standard yearly rate. * Post-secondary school students enrolled in at least half-time status shall be eligible for the student rate for a maximum of 6 post-secondary years in this status. * Memberships are available for annual and lifetime terms. Contact info [at] amsat.org<https://www.amsat.org> for additional membership information. 73 and remember to help Keep Amateur Radio in Space! This week's ANS Editor, Mitch Ahrenstorff, ADØHJ ad0hj [at] amsat.org<https://www.amsat.org>

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Re: MESAT-1 Operations
by Mark L. Hammond 27 Jul '24

27 Jul '24

Thanks for the frames, JoAnne! The one you got the other day came in REALLY handy...so you just never know the value of your efforts to get a working system and copy some frames. A reminder--the Transponder is OFF and will remain so for a while, while we help UMaine get the science data from their satellite. A teaser--a quick test suggests that the linear transponder operation looks pretty promising ;) Another reminder--getting our stations "up to snuff" to copy MESAT1 is good, fun, work! Consider copying MESAT1 telemetry a good benchmark for how well you can receive on 70cm. Happy telemetry collecting! 73, Mark L. Hammond [N8MH] AMSAT Director and Command Station On Sat, Jul 27, 2024 at 11:22 AM JoAnne Maenpaa via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Thanks Chris! > > I had good copy on the beacon and decodes were flowing nicely during the > Saturday morning pass. My camera tab on FoxTelem shows a few lines of the > image. I'll hope for stronger signals later today. > > The higher power and continuous transmission made final tweaks a lot > easier :-) > > Also on the IC-9700 I found that I've got use the MAIN RX (and not the SUB > RX) for FoxTelem to get the data. I use 435.798 as the initial frequency as > N8MH had recommended previously. > > > On 7/27/2024 10:08 AM, Chris Thompson via AMSAT-BB wrote: > > The MESAT-1 team are continuing to test and commission the satellite. It > is currently in Health Mode transmitting continuously and the downlink > power is now about 6dB higher. So it should be easier to hear and decode. > If you have had trouble decoding it then now is a good time to try again. > > You may have seen some data from the on board Multispectral Camera > Saturday morning. This was test data as part of the commissioning > process. The team will attempt to capture and transmit new science data on > the 01:53 UTC and 12.25 UTC passes over North America tonight and tomorrow. > > 73 > Chris > VE2TCP / G0KLA / AC2CZ > > -- > Chris E. Thompson > chrisethompson(a)gmail.com > g0kla(a)arrl.net > > -- > 73 de JoAnne K9JKMjoanne.k9jkm(a)gmail.com > BM DMR TG 98006 > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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Re: MESAT-1 Operations
by JoAnne Maenpaa 27 Jul '24

27 Jul '24

Thanks Chris! I had good copy on the beacon and decodes were flowing nicely during the Saturday morning pass. My camera tab on FoxTelem shows a few lines of the image. I'll hope for stronger signals later today. The higher power and continuous transmission made final tweaks a lot easier :-) Also on the IC-9700 I found that I've got use the MAIN RX (and not the SUB RX) for FoxTelem to get the data. I use 435.798 as the initial frequency as N8MH had recommended previously. On 7/27/2024 10:08 AM, Chris Thompson via AMSAT-BB wrote: > The MESAT-1 team are continuing to test and commission the satellite. > It is currently in Health Mode transmitting continuously and the > downlink power is now about 6dB higher. So it should be easier to > hear and decode. If you have had trouble decoding it then now is a > good time to try again. > > You may have seen some data from the on board Multispectral Camera > Saturday morning. This was test data as part of the commissioning > process. The team will attempt to capture and transmit new science > data on the 01:53 UTC and 12.25 UTC passes over North America tonight > and tomorrow. > > 73 > Chris > VE2TCP / G0KLA / AC2CZ > > -- > Chris E. Thompson > chrisethompson(a)gmail.com > g0kla(a)arrl.net > -- 73 de JoAnne K9JKM joanne.k9jkm(a)gmail.com BM DMR TG 98006

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MESAT-1 Operations
by Chris Thompson 27 Jul '24

27 Jul '24

The MESAT-1 team are continuing to test and commission the satellite. It is currently in Health Mode transmitting continuously and the downlink power is now about 6dB higher. So it should be easier to hear and decode. If you have had trouble decoding it then now is a good time to try again. You may have seen some data from the on board Multispectral Camera Saturday morning. This was test data as part of the commissioning process. The team will attempt to capture and transmit new science data on the 01:53 UTC and 12.25 UTC passes over North America tonight and tomorrow. 73 Chris VE2TCP / G0KLA / AC2CZ -- Chris E. Thompson chrisethompson(a)gmail.com g0kla(a)arrl.net

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ARISS News Release No. 24-41
by David H Jordan 26 Jul '24

26 Jul '24

*ARISS News Release No.24-41* *Dave Jordan, AA4KN * *ARISS PR* *aa4kn(a)amsat.org <aa4kn(a)amsat.org>* *FOR IMMEDIATE RELEASE* *ARISS Contact is Scheduled with Students at * *Narayama ARISS School Contact, Nara, Japan* July 26, 2024—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students located in Nara, Japan. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS. School Story: Nara City has a long history, with its capital established approximately 1,300 years ago. In addition, Nara Prefecture has many world heritage sites and is an international tourist city. This will be the first time ARISS School Contact will be held in Nara Prefecture. We selected the contact members from Sakyo Elementary School and Tsubai Elementary School in Nara City. This will be a direct contact via amateur radio allowing students to ask their questions of astronaut Mike Barratt, amateur radio call sign KD5MIJ. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the relay ground station. The amateur radio ground station for this contact is in Nara, Japan. Amateur radio operators using call sign JK3ZNB, will operate the ground station to establish and maintain the ISS connection. The ARISS radio contact is scheduled for July 29, 2024 at 7:52:51 pm JST (Japan) (10:52:51 UTC, 6:56 am EDT, 5:56 am CDT, 4:56 am MDT, 3:56 am PDT). The public is invited to watch the live stream at: https://www.youtube.com/watch?v=BQrUHun__6o *_______________________________* As time allows, students will ask these questions: 1. Yasuka (12) Can you see lightning on earth from space? 2. Haruto (9) What do you eat in space? 3. Rinto (10) Is the earth really green when seen from space? 4. Haruna (9) What kind of training does it take to go to space? 5. Yusei (11) How do you dispose of toilet waste? 6. Kohei (10) Have you ever seen any space debris while working outside the ISS? 7. Kippei (8) Can you write with a pen in space? 8. Sawako (12) What do you look forward to every day? 9. Seita (11) Is there any dust inside the space station? 10. Manato (9) How do you drink in space? 11. Kouki (8) How do you exercise in space? 12. Teppei (9) When you sleep in a sleeping bag in space, do you float in the sleeping bag or does the sleeping bag itself float? 13. Sotaro (11) What happens when you throw a paper airplane in space? 14. Haruya (10) How did you feel when you first went into space? 15. Rikushi (10) What is the Earth like as seen from space? *About ARISS:* Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the ISS. In the United States, sponsors are the American Radio Relay League (ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur Satellite Corporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN) and the ISS National Lab—Space Station Explorers. The primary goal of ARISS is to promote exploration of science, technology, engineering, the arts, and mathematics topics. ARISS does this by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students. Before and during these radio contacts, students, educators, parents, and communities take part in hands-on learning activities tied to space, space technologies, and amateur radio. For more information, see http://www.ariss.org. Media Contact: Dave Jordan, AA4KN ARISS PR Find us on social media at: X: ARISS_Intl Facebook: facebook.com/ARISSIntl Instagram: ariss_intl Mastodon: ariss_intl(a)mastodon.hams.social Check out ARISS on Youtube.com.

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7E4K Expedition on Satellites
by Yono Adisoemarta 25 Jul '24

25 Jul '24

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Upcoming ARISS Contact Schedule as of 2024-07-25 20:00 UTC
by aj9n＠aol.com 25 Jul '24

25 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-25 20:00 UTC Quick list of scheduled contacts and events: Nizhnekamsk schools, Nizhnekamsk, Republic of Tatarstan, Russia, direct via RC4P (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:50 UTC (***) Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:52:51 UTC 53 deg (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub (***) The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC (***) The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-25 20:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Upcoming ARISS Contact Schedule as of 2024-07-25 18:00 UTC
by aj9n＠aol.com 25 Jul '24

25 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-25 18:00 UTC Quick list of scheduled contacts and events: Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:52:51 UTC 53 deg (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg A.G. Nikolaev Secondary School, Shorshel, Chuvashia, Russia direct via TBD (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Nikolay Chub (***) The ARISS mentor is RV3DR Contact is go for Sun 2024-08-11 08:20 UTC (***) The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-25 18:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Upcoming ARISS Contact Schedule as of 2024-07-24 18:30 UTC
by aj9n＠aol.com 24 Jul '24

24 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-24 18:30 UTC Quick list of scheduled contacts and events: Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:52:51 UTC 53 deg (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-24 18:30 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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ARISS News Release No. 24-40
by David H Jordan 24 Jul '24

24 Jul '24

*ARISS News Release No.24-40* *Dave Jordan, AA4KN * *ARISS PR* *aa4kn(a)amsat.org <aa4kn(a)amsat.org>* *FOR IMMEDIATE RELEASE* *ARISS Contact is Scheduled with Students at * *Arizona Science Center, Phoenix, Arizona, USA* July 24, 2024—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students at the Arizona Science Center, located in Phoenix, AZ. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS. Arizona Science Center (ASC), located in downtown Phoenix, features more than 300 hands-on exhibits, a state-of-the-art planetarium, a five-story giant-screen theater, live demonstrations, traveling exhibitions, and exciting science programs. The ASC offers programs for all ages, including Science on Wheels, CAMP INNOVATION, Teen programs, Professional Development, and Adults’ Night Out: Science With A Twist. The telebridge ARISS contact is supported by local ham radio operators and ham radio volunteers from the Harkins HAM Shack team. Located on Level 3 of ASC, the Harkins HAM Shack allows guests to explore past and present radio technologies and participate in an international community with other amateur radio stations and operators worldwide using amateur radio. Run fully by volunteers, the Harkins HAM Shack provides a unique amateur radio learning experience for ASC visitors. This will be a telebridge contact via amateur radio allowing students to ask their questions of astronaut Matthew Dominick, amateur radio call sign KCØTOR. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the telebridge station. The ARISS amateur radio ground station (telebridge station) for this contact is in Hollis, New Hampshire, U.S. The amateur radio volunteer team at the ground station will use the callsign AB1OC, to establish and maintain the ISS connection. The ARISS radio contact is scheduled for July 27, 2024 at 11:24 am MST (AZ) (18:24 UTC, 2:24 pm EDT, 1:24 pm CDT, 11:24 am PDT). The public is invited to watch the live stream at: The Center is planning to host a live stream of the contact. *_______________________________* As time allows, students will ask these questions: 1. What kind of music do you like to listen to in space? 2. What protocols do you have to do every day? 3. How do you communicate with your families while in space? 4. What is the hardest thing to do in space? 5. How are your dreams in space? Are they different from your dreams on Earth? 6. Have you seen any other living life forms on planets? 7. What are the names of some of the space crafts? 8. What do your computers do? 9. How do they figure out how many steps it takes to get to the moon? 10. What is your favorite restaurant you miss on earth? 11. How do astronauts not get sick when they are flying around in space? 12. Is it fun having no gravity, just floating around in space? 13. How do you take showers? Questions from adults at ASC if time needs to be filled 1. What is your daily schedule? 2. What is something that is more fun to do on the ISS than it is to do at home? 3. What is the most interesting task you have been assigned on the ISS? 4. What was the hardest part of astronaut training? 5. What movie has the most realistic representation of space? 6. How do you deal with a medical emergency on the ISS? 7. What is the strangest physical sensation you have had in space? 8. Can your legs and arms still go numb in space? 9. Do you play Dungeons and Dragons in space? 10. What sport would be the most fun to play in space? *About ARISS:* Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the ISS. In the United States, sponsors are the American Radio Relay League (ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur Satellite Corporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN) and the ISS National Lab—Space Station Explorers. The primary goal of ARISS is to promote exploration of science, technology, engineering, the arts, and mathematics topics. ARISS does this by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students. Before and during these radio contacts, students, educators, parents, and communities take part in hands-on learning activities tied to space, space technologies, and amateur radio. For more information, see http://www.ariss.org. Media Contact: Dave Jordan, AA4KN ARISS PR Find us on social media at: X: ARISS_Intl Facebook: facebook.com/ARISSIntl Instagram: ariss_intl Mastodon: ariss_intl(a)mastodon.hams.social Check out ARISS on Youtube.com.

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Upcoming ARISS Contact Schedule as of 2024-07-23 23:30 UTC
by aj9n＠aol.com 23 Jul '24

23 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-23 23:30 UTC Quick list of scheduled contacts and events: Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 11:03:33UTC 53 deg (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Wed 2024-07-31 18:17:25 UTC 43 deg (***) Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:43:07 UTC 27 deg (***) The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-23 23:30 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Upcoming ARISS Contact Schedule as of 2024-07-23 16:00 UTC
by aj9n＠aol.com 23 Jul '24

23 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-23 16:00 UTC Quick list of scheduled contacts and events: Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via JK3ZNB (***) The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:56:40 UTC 59 deg SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:45:31 UTC 25 deg Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU The ARISS mentor is AB1OC Contact is go for: Fri 2024-08-02 16:45:22 UTC 79 deg Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-23 16:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: SO-50 Key to Longivity?
by Bruce Perens 23 Jul '24

23 Jul '24

> And what have we learned from IO-117 about radiation resistance, etc? Perhaps one of us has access to the full paper, here's the abstract: https://iris.uniroma1.it/handle/11573/1703313 Insist on Diamond Open Access for your scholarly publications. That is a journal that does not charge either authors or readers. On Mon, Jul 22, 2024 at 9:45 AM JOHN GEIGER via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > Unfortunately I don't know much about IO-117 so that is a question I can't > answer. > > 73 John AF5CC > > Sent using Zoho Mail > > > > ---- On Mon, 22 Jul 2024 11:31:20 -0500 * <crohtun(a)aim.com > <crohtun(a)aim.com>>* wrote --- > > And what have we learned from IO-117 about radiation resistance, etc? > > Ray Crafton KN2K > > > Sent from the all new AOL app for iOS > <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> > > On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > > SO-50 will be 22 years old in December and seems to be still be going > strong, in sunlight and in eclipse. No other satellite launched since then > has lived near that long. So what is SO-50s key to long life? Is it how > the satellite was built? Something in its operation, like lower power on > transmit? Its orbital setup? > > Any ideas why it has lived so much longer than the recent crop of AMSATS? > > 73 John AF5CC > > Sent using Zoho Mail > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org -- Bruce Perens K6BP

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Re: SO-50 Key to Longivity?
by Will Ruef 23 Jul '24

23 Jul '24

Jim, Thanks for providing this info. Very interesting read. Do you know of any hi-res images taken of SO-50 before it was launched? I have always been kind of curious what the bird looks like. There are a few sites with images of it but 3 or 4 of them have conflicting images of obviously different cube sats. Thanks for being a part of building such a great FM sat. I can't even imagine the amount of amateurs that have had fun working SO-50 over the years. 73, Will KN6QVA On 7/22/24 3:39 PM, Jim White via AMSAT-BB wrote: > > Managing the battery discharge by adjusting current draws - by turning > things on/off or changing the power level of the transmitter, has been > done since the 1990 AMSAT Microsats (or the SSTL birds before them). > At least we did that in one the ones I worked on. I think it's still > true that the most common cause of satellite failure is batteries > doing bad, and the one's I'm familiar with were because the batteries > got pulled down to the resting voltage (about 1V/cell for NiCads). > They will reverse polarity or short when you mistreat them. With > chemistries like LiPoly, if you mistreat them they just die, or explode. > > You prevent that by making sure you never pull the voltage too low, > and by not overcharging them. Another feature in the Microsats was to > reduce battery charging when they got near "full" by moving the solar > panel off the optimum point in the I/V curve. I have seen many > examples of missions that sat on the shelf for months with the battery > (whatever chemistry) discharging. Then at separation they turn on a > bunch of stuff and, drew the batteries into the ditch, reset, and > maybe came back on. And a few that did that over and over until > operators managed to stop it by command. Or they died. > > In the Microsats, and others I worked on, we took a very conservative > approach. At sep, turn on only what is absolutely needed, beacon at a > slow rate and lower power, let the batteries charge up and let the > operators decide when to turn on the ACS or other stuff - after being > sure there was enough power available. > > So to the extent batteries are managed properly as in Falconsat 3 and > SO50, yes, that definitely extends the life. > > Having said that if you design goal is a year of operation at higher > TX power with a full ACS running, or gathering a lot of science data, > you accept the satellite life will be shorter. > > It's all a trade-off. Actually, many trade-offs all tangled up with > each other. > > Jim > > > On 7/22/2024 4:17 PM, Brian Wilkins via AMSAT-BB wrote: >> Jim >> >> Did the TX timer help to extend the life of the satellite? >> >> 73, ko4aqf(a)gmail.com >> >> >> On Mon, Jul 22, 2024 at 1:17 PM Jim White via AMSAT-BB >> <amsat-bb(a)amsat.org> wrote: >> >> I'll provide a bit of input here since I worked on SO50. Here >> are some considerations. >> >> - The hardware was mostly built by SpaceQuest and used proven >> designs that had been flown several times >> >> - The design goal was long life. The orbits would provide that, >> unlike some current launches were the orbit will last a shorter >> time. The idea was to provide a long life resource for all to use. >> >> - The software followed proven designs dating back to the 1990 >> Microsats. All software except the boot loader (in rad protected >> RAM) was uploadeable. The SCOS real-time operating system >> allowed individual tasks to be killed and uploaded without >> disturbing other tasks or the OS. SCOS was quite robust. >> >> - There were no I2C busses to latch up, and no flash cards (both >> of which cause problems in current designs) >> >> - The program memory was rad hard, the OS 'washed' that memory >> every 10 minutes to eliminate bit flips from passing through the >> SAA. The data memory used Huffman software rad recovery. >> >> - Antennas we not deploy-able and were made of piano wire so were >> quite robust. >> >> - The batteries were NiCAD so were robust and hard to hurt. They >> work fine over a wide temperature range and don't need heaters. >> Don't need to manage charging as carefully and don't need to be >> concerned about not charging if outside a temp range. >> >> - The software automatically adjusted TX power output to prevent >> pulling the battery V too low and causing a reset. There were >> three steps of battery management, each turning off more stuff to >> reduce load and attempt to prevent full discharge. >> >> - Batteries were very carefully matched using the process first >> developed for the Microsats. >> >> - The power system included adjusting the solar panel input >> impedance to constantly maximize power from the panels. And >> another algorithm prevented overcharging. A manual process is >> used to adjust those algorithms as the battery capacity drops >> with time and the panels loose efficiency. >> >> - The software kept the dept of discharge of the batteries to no >> more than about 20%, resulting in much longer battery life. >> >> Jim, WD0E >> >> >> On 7/22/2024 10:46 AM, JOHN GEIGER via AMSAT-BB wrote: >>> Unfortunately I don't know much about IO-117 so that is a >>> question I can't answer. >>> >>> 73 John AF5CC >>> >>> Sent using Zoho Mail >>> >>> >>> >>> >>> ---- On Mon, 22 Jul 2024 11:31:20 -0500 *<crohtun(a)aim.com> >>> <mailto:crohtun@aim.com>* wrote --- >>> >>> And what have we learned from IO-117 about radiation >>> resistance, etc? >>> >>> Ray Crafton KN2K >>> >>> >>> Sent from the all new AOL app for iOS >>> <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> >>> >>> On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB >>> <amsat-bb(a)amsat.org> wrote: >>> >>> >>> SO-50 will be 22 years old in December and seems to be >>> still be going strong, in sunlight and in eclipse. No >>> other satellite launched since then has lived near that >>> long. So what is SO-50s key to long life? Is it how >>> the satellite was built? Something in its operation, >>> like lower power on transmit? Its orbital setup? >>> >>> Any ideas why it has lived so much longer than the >>> recent crop of AMSATS? >>> >>> 73 John AF5CC >>> >>> Sent using Zoho Mail >>> >>> >>> >>> >>> ----------------------------------------------------------- >>> >>> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. >>> AMSAT-NA makes this open forum available >>> to all interested persons worldwide without requiring >>> membership. Opinions expressed >>> are solely those of the author, and do not reflect the >>> official views of AMSAT-NA. >>> Acceptable Use and Privacy Policies available at >>> https://www.amsat.org/about-amsat/ >>> >>> View archives of this mailing list at >>> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >>> To unsubscribe send an email to >>> amsat-bb-leave(a)amsat.org <http://amsat.org> >>> Manage all of your AMSAT-NA mailing list preferences at >>> https://mailman.amsat.org >>> >>> >>> >>> >>> >>> ----------------------------------------------------------- >>> >>> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes this open forum available >>> to all interested persons worldwide without requiring membership. Opinions expressed >>> are solely those of the author, and do not reflect the official views of AMSAT-NA. >>> Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ >>> >>> View archives of this mailing list at >>> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >>> To unsubscribe send an email to amsat-bb-leave(a)amsat.org <http://amsat.org> >>> Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes >> this open forum available >> to all interested persons worldwide without requiring membership. >> Opinions expressed >> are solely those of the author, and do not reflect the official >> views of AMSAT-NA. >> Acceptable Use and Privacy Policies available at >> https://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to amsat-bb-leave(a)amsat.org >> <http://amsat.org> >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring membership. Opinions expressed >> are solely those of the author, and do not reflect the official views of AMSAT-NA. >> Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to amsat-bb-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by Bruce Perens 23 Jul '24

23 Jul '24

Supercapacitor lifetime: https://abracon.com/uploads/resources/Supercapacitor-Lifetime-Explained.pdf There seem to be a lot of papers on space-qualified supercapacitors, but no off-the-shelf space-qualified ones. The temperature range is one issue out of dozens. This would hardly be the first time that the most desirable component was pure unobtanium. On Mon, Jul 22, 2024 at 3:35 PM Starr Moffatt via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Batteries are often the first major things to fail. > (AO7 failed then re-awoke when the battery open circuited). > > I would suggest instead of having a battery, use ultra capacitors to > help even out the power from the solar cells when in sunlight, and, have > no transponder operation when in eclipse. > > Additional advantages are: (1) ultra capacitors are lighter than a > battery, (2) the solar cells need only supply the transponder, whereas > there needs to be extra solar cells to also recharge the discharged > battery when the bird is in sunlight. > > The only disadvantage is the transponder is non operational during > eclipse periods, which, in reality, is no big issue. > > 73 Starr ZL3CU > > On 23/07/2024 5:15 am, JOHN GEIGER via AMSAT-BB wrote: > > Thanks for the information on all of those things. Hopefully someday we > > can see some more FM satellites with this sort of lifespan! > > > > 73 John AF5CC > > > > Sent using Zoho Mail <{0}> > > > > > > > > > > ---- On Mon, 22 Jul 2024 12:06:57 -0500 *Paul Stoetzer via AMSAT-BB > > <amsat-bb(a)amsat.org>* wrote --- > > > > 1. It's a microsat size satellite, so significantly larger than > > current cubesat form factors. > > 2. It's transmit power is just 250 mW and it transmits only while it > > receives a signal with a 67 Hz PL tone - there's no constant carrier > > or any telemetry transmissions. I'm not aware of any other payloads > > or signals coming from the satellite. Potentially there's not even > > any onboard computer drawing power. > > 3. Given its size, it has fairly large solar cells and likely has > > fairly large battery cells and given its transmit setup, the depth > > of discharge is likely quite low. NiCd batteries can last a real > > long time when the depth of discharge is kept quite low. > > > > 73, > > > > Paul, N8HM > > > > On Mon, Jul 22, 2024 at 12:05 PM JOHN GEIGER via AMSAT-BB > > <amsat-bb(a)amsat.org <mailto:amsat-bb@amsat.org>> wrote: > > > > __ > > > > SO-50 will be 22 years old in December and seems to be still be > > going strong, in sunlight and in eclipse. No other satellite > > launched since then has lived near that long. So what is SO-50s > > key to long life? Is it how the satellite was built? Something > > in its operation, like lower power on transmit? Its orbital > setup? > > > > Any ideas why it has lived so much longer than the recent crop > > of AMSATS? > > > > 73 John AF5CC > > > > Sent using Zoho Mail > > > > > > > > > > ----------------------------------------------------------- > > > > Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes > > this open forum available > > to all interested persons worldwide without requiring > > membership. Opinions expressed > > are solely those of the author, and do not reflect the official > > views of AMSAT-NA. > > Acceptable Use and Privacy Policies available at > > https://www.amsat.org/about-amsat/ > > <https://www.amsat.org/about-amsat/> > > > > View archives of this mailing list at > > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > > <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> > > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > > <http://amsat.org> > > Manage all of your AMSAT-NA mailing list preferences at > > https://mailman.amsat.org <https://mailman.amsat.org> > > > > > > ----------------------------------------------------------- > > > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum > available > > to all interested persons worldwide without requiring membership. > > Opinions expressed > > are solely those of the author, and do not reflect the official > > views of AMSAT-NA. > > Acceptable Use and Privacy Policies available at > > https://www.amsat.org/about-amsat/ < > https://www.amsat.org/about-amsat/> > > > > View archives of this mailing list at > > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > > <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> > > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > > Manage all of your AMSAT-NA mailing list preferences at > > https://mailman.amsat.org <https://mailman.amsat.org> > > > > > > > > > > ----------------------------------------------------------- > > > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > > to all interested persons worldwide without requiring membership. > Opinions expressed > > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > > > View archives of this mailing list at > > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org -- Bruce Perens K6BP

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Re: SO-50 Key to Longivity?
by Jim White 22 Jul '24

22 Jul '24

Managing the battery discharge by adjusting current draws - by turning things on/off or changing the power level of the transmitter, has been done since the 1990 AMSAT Microsats (or the SSTL birds before them). At least we did that in one the ones I worked on. I think it's still true that the most common cause of satellite failure is batteries doing bad, and the one's I'm familiar with were because the batteries got pulled down to the resting voltage (about 1V/cell for NiCads). They will reverse polarity or short when you mistreat them. With chemistries like LiPoly, if you mistreat them they just die, or explode. You prevent that by making sure you never pull the voltage too low, and by not overcharging them. Another feature in the Microsats was to reduce battery charging when they got near "full" by moving the solar panel off the optimum point in the I/V curve. I have seen many examples of missions that sat on the shelf for months with the battery (whatever chemistry) discharging. Then at separation they turn on a bunch of stuff and, drew the batteries into the ditch, reset, and maybe came back on. And a few that did that over and over until operators managed to stop it by command. Or they died. In the Microsats, and others I worked on, we took a very conservative approach. At sep, turn on only what is absolutely needed, beacon at a slow rate and lower power, let the batteries charge up and let the operators decide when to turn on the ACS or other stuff - after being sure there was enough power available. So to the extent batteries are managed properly as in Falconsat 3 and SO50, yes, that definitely extends the life. Having said that if you design goal is a year of operation at higher TX power with a full ACS running, or gathering a lot of science data, you accept the satellite life will be shorter. It's all a trade-off. Actually, many trade-offs all tangled up with each other. Jim On 7/22/2024 4:17 PM, Brian Wilkins via AMSAT-BB wrote: > Jim > > Did the TX timer help to extend the life of the satellite? > > 73, ko4aqf(a)gmail.com > > > On Mon, Jul 22, 2024 at 1:17 PM Jim White via AMSAT-BB > <amsat-bb(a)amsat.org> wrote: > > I'll provide a bit of input here since I worked on SO50. Here are > some considerations. > > - The hardware was mostly built by SpaceQuest and used proven > designs that had been flown several times > > - The design goal was long life. The orbits would provide that, > unlike some current launches were the orbit will last a shorter > time. The idea was to provide a long life resource for all to use. > > - The software followed proven designs dating back to the 1990 > Microsats. All software except the boot loader (in rad protected > RAM) was uploadeable. The SCOS real-time operating system allowed > individual tasks to be killed and uploaded without disturbing > other tasks or the OS. SCOS was quite robust. > > - There were no I2C busses to latch up, and no flash cards (both > of which cause problems in current designs) > > - The program memory was rad hard, the OS 'washed' that memory > every 10 minutes to eliminate bit flips from passing through the > SAA. The data memory used Huffman software rad recovery. > > - Antennas we not deploy-able and were made of piano wire so were > quite robust. > > - The batteries were NiCAD so were robust and hard to hurt. They > work fine over a wide temperature range and don't need heaters. > Don't need to manage charging as carefully and don't need to be > concerned about not charging if outside a temp range. > > - The software automatically adjusted TX power output to prevent > pulling the battery V too low and causing a reset. There were > three steps of battery management, each turning off more stuff to > reduce load and attempt to prevent full discharge. > > - Batteries were very carefully matched using the process first > developed for the Microsats. > > - The power system included adjusting the solar panel input > impedance to constantly maximize power from the panels. And > another algorithm prevented overcharging. A manual process is used > to adjust those algorithms as the battery capacity drops with time > and the panels loose efficiency. > > - The software kept the dept of discharge of the batteries to no > more than about 20%, resulting in much longer battery life. > > Jim, WD0E > > > On 7/22/2024 10:46 AM, JOHN GEIGER via AMSAT-BB wrote: >> Unfortunately I don't know much about IO-117 so that is a >> question I can't answer. >> >> 73 John AF5CC >> >> Sent using Zoho Mail >> >> >> >> >> ---- On Mon, 22 Jul 2024 11:31:20 -0500 *<crohtun(a)aim.com> >> <mailto:crohtun@aim.com>* wrote --- >> >> And what have we learned from IO-117 about radiation >> resistance, etc? >> >> Ray Crafton KN2K >> >> >> Sent from the all new AOL app for iOS >> <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> >> >> On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB >> <amsat-bb(a)amsat.org> wrote: >> >> >> SO-50 will be 22 years old in December and seems to be >> still be going strong, in sunlight and in eclipse. No >> other satellite launched since then has lived near that >> long. So what is SO-50s key to long life? Is it how the >> satellite was built? Something in its operation, like >> lower power on transmit? Its orbital setup? >> >> Any ideas why it has lived so much longer than the recent >> crop of AMSATS? >> >> 73 John AF5CC >> >> Sent using Zoho Mail >> >> >> >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. >> AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring >> membership. Opinions expressed >> are solely those of the author, and do not reflect the >> official views of AMSAT-NA. >> Acceptable Use and Privacy Policies available at >> https://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to >> amsat-bb-leave(a)amsat.org <http://amsat.org> >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> >> >> >> >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring membership. Opinions expressed >> are solely those of the author, and do not reflect the official views of AMSAT-NA. >> Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to amsat-bb-leave(a)amsat.org <http://amsat.org> >> Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes > this open forum available > to all interested persons worldwide without requiring membership. > Opinions expressed > are solely those of the author, and do not reflect the official > views of AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > <http://amsat.org> > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by Starr Moffatt 22 Jul '24

22 Jul '24

Batteries are often the first major things to fail. (AO7 failed then re-awoke when the battery open circuited). I would suggest instead of having a battery, use ultra capacitors to help even out the power from the solar cells when in sunlight, and, have no transponder operation when in eclipse. Additional advantages are: (1) ultra capacitors are lighter than a battery, (2) the solar cells need only supply the transponder, whereas there needs to be extra solar cells to also recharge the discharged battery when the bird is in sunlight. The only disadvantage is the transponder is non operational during eclipse periods, which, in reality, is no big issue. 73 Starr ZL3CU On 23/07/2024 5:15 am, JOHN GEIGER via AMSAT-BB wrote: > Thanks for the information on all of those things. Hopefully someday we > can see some more FM satellites with this sort of lifespan! > > 73 John AF5CC > > Sent using Zoho Mail <{0}> > > > > > ---- On Mon, 22 Jul 2024 12:06:57 -0500 *Paul Stoetzer via AMSAT-BB > <amsat-bb(a)amsat.org>* wrote --- > > 1. It's a microsat size satellite, so significantly larger than > current cubesat form factors. > 2. It's transmit power is just 250 mW and it transmits only while it > receives a signal with a 67 Hz PL tone - there's no constant carrier > or any telemetry transmissions. I'm not aware of any other payloads > or signals coming from the satellite. Potentially there's not even > any onboard computer drawing power. > 3. Given its size, it has fairly large solar cells and likely has > fairly large battery cells and given its transmit setup, the depth > of discharge is likely quite low. NiCd batteries can last a real > long time when the depth of discharge is kept quite low. > > 73, > > Paul, N8HM > > On Mon, Jul 22, 2024 at 12:05 PM JOHN GEIGER via AMSAT-BB > <amsat-bb(a)amsat.org <mailto:amsat-bb@amsat.org>> wrote: > > __ > > SO-50 will be 22 years old in December and seems to be still be > going strong, in sunlight and in eclipse. No other satellite > launched since then has lived near that long. So what is SO-50s > key to long life? Is it how the satellite was built? Something > in its operation, like lower power on transmit? Its orbital setup? > > Any ideas why it has lived so much longer than the recent crop > of AMSATS? > > 73 John AF5CC > > Sent using Zoho Mail > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes > this open forum available > to all interested persons worldwide without requiring > membership. Opinions expressed > are solely those of the author, and do not reflect the official > views of AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > <https://www.amsat.org/about-amsat/> > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > <http://amsat.org> > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org <https://mailman.amsat.org> > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. > Opinions expressed > are solely those of the author, and do not reflect the official > views of AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ <https://www.amsat.org/about-amsat/> > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > <https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org> > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org <https://mailman.amsat.org> > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by Brian Wilkins 22 Jul '24

22 Jul '24

Jim Did the TX timer help to extend the life of the satellite? 73, ko4aqf(a)gmail.com On Mon, Jul 22, 2024 at 1:17 PM Jim White via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > I'll provide a bit of input here since I worked on SO50. Here are some > considerations. > > - The hardware was mostly built by SpaceQuest and used proven designs that > had been flown several times > > - The design goal was long life. The orbits would provide that, unlike > some current launches were the orbit will last a shorter time. The idea > was to provide a long life resource for all to use. > > - The software followed proven designs dating back to the 1990 Microsats. > All software except the boot loader (in rad protected RAM) was > uploadeable. The SCOS real-time operating system allowed individual tasks > to be killed and uploaded without disturbing other tasks or the OS. SCOS > was quite robust. > > - There were no I2C busses to latch up, and no flash cards (both of which > cause problems in current designs) > > - The program memory was rad hard, the OS 'washed' that memory every 10 > minutes to eliminate bit flips from passing through the SAA. The data > memory used Huffman software rad recovery. > > - Antennas we not deploy-able and were made of piano wire so were quite > robust. > > - The batteries were NiCAD so were robust and hard to hurt. They work > fine over a wide temperature range and don't need heaters. Don't need to > manage charging as carefully and don't need to be concerned about not > charging if outside a temp range. > > - The software automatically adjusted TX power output to prevent pulling > the battery V too low and causing a reset. There were three steps of > battery management, each turning off more stuff to reduce load and attempt > to prevent full discharge. > > - Batteries were very carefully matched using the process first developed > for the Microsats. > > - The power system included adjusting the solar panel input impedance to > constantly maximize power from the panels. And another algorithm prevented > overcharging. A manual process is used to adjust those algorithms as the > battery capacity drops with time and the panels loose efficiency. > > - The software kept the dept of discharge of the batteries to no more than > about 20%, resulting in much longer battery life. > > Jim, WD0E > > > On 7/22/2024 10:46 AM, JOHN GEIGER via AMSAT-BB wrote: > > Unfortunately I don't know much about IO-117 so that is a question I can't > answer. > > 73 John AF5CC > > Sent using Zoho Mail > > > > ---- On Mon, 22 Jul 2024 11:31:20 -0500 * <crohtun(a)aim.com> > <crohtun(a)aim.com>* wrote --- > > And what have we learned from IO-117 about radiation resistance, etc? > > Ray Crafton KN2K > > > Sent from the all new AOL app for iOS > <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> > > On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > > SO-50 will be 22 years old in December and seems to be still be going > strong, in sunlight and in eclipse. No other satellite launched since then > has lived near that long. So what is SO-50s key to long life? Is it how > the satellite was built? Something in its operation, like lower power on > transmit? Its orbital setup? > > Any ideas why it has lived so much longer than the recent crop of AMSATS? > > 73 John AF5CC > > Sent using Zoho Mail > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ > > View archives of this mailing list athttps://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

1 0

Re: SO-50 Key to Longivity?
by Ivan Molina 22 Jul '24

22 Jul '24

Thanks Jim for the valuable information. KN6EN Yahoo Mail: Search, Organize, Conquer On Mon, Jul 22, 2024 at 10:17 AM, Jim White via AMSAT-BB<amsat-bb(a)amsat.org> wrote: I'll provide a bit of input here since I worked on SO50. Here are some considerations. - The hardware was mostly built by SpaceQuest and used proven designs that had been flown several times - The design goal was long life. The orbits would provide that, unlike some current launches were the orbit will last a shorter time. The idea was to provide a long life resource for all to use. - The software followed proven designs dating back to the 1990 Microsats. All software except the boot loader (in rad protected RAM) was uploadeable. The SCOS real-time operating system allowed individual tasks to be killed and uploaded without disturbing other tasks or the OS. SCOS was quite robust. - There were no I2C busses to latch up, and no flash cards (both of which cause problems in current designs) - The program memory was rad hard, the OS 'washed' that memory every 10 minutes to eliminate bit flips from passing through the SAA. The data memory used Huffman software rad recovery. - Antennas we not deploy-able and were made of piano wire so were quite robust. - The batteries were NiCAD so were robust and hard to hurt. They work fine over a wide temperature range and don't need heaters. Don't need to manage charging as carefully and don't need to be concerned about not charging if outside a temp range. - The software automatically adjusted TX power output to prevent pulling the battery V too low and causing a reset. There were three steps of battery management, each turning off more stuff to reduce load and attempt to prevent full discharge. - Batteries were very carefully matched using the process first developed for the Microsats. - The power system included adjusting the solar panel input impedance to constantly maximize power from the panels. And another algorithm prevented overcharging. A manual process is used to adjust those algorithms as the battery capacity drops with time and the panels loose efficiency. - The software kept the dept of discharge of the batteries to no more than about 20%, resulting in much longer battery life. Jim, WD0E On 7/22/2024 10:46 AM, JOHN GEIGER via AMSAT-BB wrote: Unfortunately I don't know much about IO-117 so that is a question I can't answer. 73 John AF5CC Sent using Zoho Mail ---- On Mon, 22 Jul 2024 11:31:20 -0500 <crohtun(a)aim.com> wrote --- And what have we learned from IO-117 about radiation resistance, etc? Ray Crafton KN2K Sent from the all new AOL app for iOS On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB <amsat-bb(a)amsat.org> wrote: SO-50 will be 22 years old in December and seems to be still be going strong, in sunlight and in eclipse. No other satellite launched since then has lived near that long. So what is SO-50s key to long life? Is it how the satellite was built? Something in its operation, like lower power on transmit? Its orbital setup? Any ideas why it has lived so much longer than the recent crop of AMSATS? 73 John AF5CC Sent using Zoho Mail ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Upcoming ARISS Contact Schedule as of 2024-07-22 19:00 UTC
by aj9n＠aol.com 22 Jul '24

22 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-22 19:00 UTC Quick list of scheduled contacts and events: Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg Narayama ARISS School Contact, Nara, Japan, direct via TBD The ISS callsign is presently scheduled to be OR4ISS (***) The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ (***) The ARISS mentor is 7M3TJZ Contact is go for: Mon 2024-07-29 10:56:40 UTC 59 deg (***) SMPIT Nurul Ishlah, Banda Aceh, Indonesia, telebridge via VK4ISS (***) The ISS callsign is presently scheduled to be NA1SS (***) The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sunita Williams KD5PLB (***) The ARISS mentor is VE3TBD Contact is go for: Fri 2024-08-02 12:45:31 UTC 25 deg (***) Kopernik Observatory, Vestal, NY, mentor direct via K2ZRO The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Jeanette Epps KF5QNU (***) The ARISS mentor is AB1OC Contact is go for: Fri 2024-08-02 16:45:22 UTC 79 deg (***) Watch for Livestream at https://youtube.com/live/Tv3x3D0DTzU?feature=share The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-22 19:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: SO-50 Key to Longivity?
by Jim White 22 Jul '24

22 Jul '24

I'll provide a bit of input here since I worked on SO50. Here are some considerations. - The hardware was mostly built by SpaceQuest and used proven designs that had been flown several times - The design goal was long life. The orbits would provide that, unlike some current launches were the orbit will last a shorter time. The idea was to provide a long life resource for all to use. - The software followed proven designs dating back to the 1990 Microsats. All software except the boot loader (in rad protected RAM) was uploadeable. The SCOS real-time operating system allowed individual tasks to be killed and uploaded without disturbing other tasks or the OS. SCOS was quite robust. - There were no I2C busses to latch up, and no flash cards (both of which cause problems in current designs) - The program memory was rad hard, the OS 'washed' that memory every 10 minutes to eliminate bit flips from passing through the SAA. The data memory used Huffman software rad recovery. - Antennas we not deploy-able and were made of piano wire so were quite robust. - The batteries were NiCAD so were robust and hard to hurt. They work fine over a wide temperature range and don't need heaters. Don't need to manage charging as carefully and don't need to be concerned about not charging if outside a temp range. - The software automatically adjusted TX power output to prevent pulling the battery V too low and causing a reset. There were three steps of battery management, each turning off more stuff to reduce load and attempt to prevent full discharge. - Batteries were very carefully matched using the process first developed for the Microsats. - The power system included adjusting the solar panel input impedance to constantly maximize power from the panels. And another algorithm prevented overcharging. A manual process is used to adjust those algorithms as the battery capacity drops with time and the panels loose efficiency. - The software kept the dept of discharge of the batteries to no more than about 20%, resulting in much longer battery life. Jim, WD0E On 7/22/2024 10:46 AM, JOHN GEIGER via AMSAT-BB wrote: > Unfortunately I don't know much about IO-117 so that is a question I > can't answer. > > 73 John AF5CC > > Sent using Zoho Mail <{0}> > > > > > ---- On Mon, 22 Jul 2024 11:31:20 -0500 *<crohtun(a)aim.com>* wrote --- > > And what have we learned from IO-117 about radiation resistance, etc? > > Ray Crafton KN2K > > > Sent from the all new AOL app for iOS > <https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661> > > On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB > <amsat-bb(a)amsat.org> wrote: > > > SO-50 will be 22 years old in December and seems to be still > be going strong, in sunlight and in eclipse. No other > satellite launched since then has lived near that long. So > what is SO-50s key to long life? Is it how the satellite was > built? Something in its operation, like lower power on > transmit? Its orbital setup? > > Any ideas why it has lived so much longer than the recent crop > of AMSATS? > > 73 John AF5CC > > Sent using Zoho Mail > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum > available > to all interested persons worldwide without requiring > membership. Opinions expressed > are solely those of the author, and do not reflect the > official views of AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available athttps://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by JOHN GEIGER 22 Jul '24

22 Jul '24

Thanks for the information on all of those things. Hopefully someday we can see some more FM satellites with this sort of lifespan! 73 John AF5CC Sent using {0} ---- On Mon, 22 Jul 2024 12:06:57 -0500 Paul Stoetzer via AMSAT-BB <amsat-bb(a)amsat.org> wrote --- 1. It's a microsat size satellite, so significantly larger than current cubesat form factors.2. It's transmit power is just 250 mW and it transmits only while it receives a signal with a 67 Hz PL tone - there's no constant carrier or any telemetry transmissions. I'm not aware of any other payloads or signals coming from the satellite. Potentially there's not even any onboard computer drawing power. 3. Given its size, it has fairly large solar cells and likely has fairly large battery cells and given its transmit setup, the depth of discharge is likely quite low. NiCd batteries can last a real long time when the depth of discharge is kept quite low. 73, Paul, N8HM On Mon, Jul 22, 2024 at 12:05 PM JOHN GEIGER via AMSAT-BB <mailto:amsat-bb@amsat.org> wrote: SO-50 will be 22 years old in December and seems to be still be going strong, in sunlight and in eclipse. No other satellite launched since then has lived near that long. So what is SO-50s key to long life? Is it how the satellite was built? Something in its operation, like lower power on transmit? Its orbital setup? Any ideas why it has lived so much longer than the recent crop of AMSATS? 73 John AF5CC Sent using ----------------------------------------------------------- Sent via AMSAT-BB(a)http://amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)http://amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by Paul Stoetzer 22 Jul '24

22 Jul '24

1. It's a microsat size satellite, so significantly larger than current cubesat form factors. 2. It's transmit power is just 250 mW and it transmits only while it receives a signal with a 67 Hz PL tone - there's no constant carrier or any telemetry transmissions. I'm not aware of any other payloads or signals coming from the satellite. Potentially there's not even any onboard computer drawing power. 3. Given its size, it has fairly large solar cells and likely has fairly large battery cells and given its transmit setup, the depth of discharge is likely quite low. NiCd batteries can last a real long time when the depth of discharge is kept quite low. 73, Paul, N8HM On Mon, Jul 22, 2024 at 12:05 PM JOHN GEIGER via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > > SO-50 will be 22 years old in December and seems to be still be going > strong, in sunlight and in eclipse. No other satellite launched since then > has lived near that long. So what is SO-50s key to long life? Is it how > the satellite was built? Something in its operation, like lower power on > transmit? Its orbital setup? > > Any ideas why it has lived so much longer than the recent crop of AMSATS? > > 73 John AF5CC > > Sent using Zoho Mail > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by JOHN GEIGER 22 Jul '24

22 Jul '24

Unfortunately I don't know much about IO-117 so that is a question I can't answer. 73 John AF5CC Sent using {0} ---- On Mon, 22 Jul 2024 11:31:20 -0500 <crohtun(a)aim.com> wrote --- And what have we learned from IO-117 about radiation resistance, etc? Ray Crafton KN2K https://apps.apple.com/us/app/aol-news-email-weather-video/id646100661 On Monday, July 22, 2024, 12:02 PM, JOHN GEIGER via AMSAT-BB <mailto:amsat-bb@amsat.org> wrote: SO-50 will be 22 years old in December and seems to be still be going strong, in sunlight and in eclipse. No other satellite launched since then has lived near that long. So what is SO-50s key to long life? Is it how the satellite was built? Something in its operation, like lower power on transmit? Its orbital setup? Any ideas why it has lived so much longer than the recent crop of AMSATS? 73 John AF5CC Sent using ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Re: SO-50 Key to Longivity?
by JOHN GEIGER 22 Jul '24

22 Jul '24

That is an interesting idea and something I was wondering about, although I don't think that SO41 had a long lifespan, so it might have been built to different standards. 73 John AF5CC Sent using {0} ---- On Mon, 22 Jul 2024 11:35:14 -0500 Ignacio Granados Vega <ti3ies(a)gmail.com> wrote --- https://space.skyrocket.de/doc_sdat/saudisat-1.htm Maybe they put a little more research and money into the development and construction, I think that was reflected in a different quality in their circuits, which has caused their life to be prolonged. 73 TI3IES El lun, 22 jul 2024 a las 10:01, JOHN GEIGER via AMSAT-BB (<mailto:amsat-bb@amsat.org>) escribió: SO-50 will be 22 years old in December and seems to be still be going strong, in sunlight and in eclipse. No other satellite launched since then has lived near that long. So what is SO-50s key to long life? Is it how the satellite was built? Something in its operation, like lower power on transmit? Its orbital setup? Any ideas why it has lived so much longer than the recent crop of AMSATS? 73 John AF5CC Sent using ----------------------------------------------------------- Sent via AMSAT-BB(a)http://amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)http://amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org -- ========================================== Ignacio Granados Vega - TI3IES Cartago, Costa Rica ========================================== Cuidemos el medio ambiente. Por favor no imprima este correo si no es necesario.

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SO-50 Key to Longivity?
by JOHN GEIGER 22 Jul '24

22 Jul '24

SO-50 will be 22 years old in December and seems to be still be going strong, in sunlight and in eclipse. No other satellite launched since then has lived near that long. So what is SO-50s key to long life? Is it how the satellite was built? Something in its operation, like lower power on transmit? Its orbital setup? Any ideas why it has lived so much longer than the recent crop of AMSATS? 73 John AF5CC Sent using {0}

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ANS-203 AMSAT News Service Weekly Bulletins
by Paul Stoetzer 21 Jul '24

21 Jul '24

*AMSAT News Service* *ANS-203* *July 18, 2024* In this edition: - AMSAT Board of Directors Election Underway - AMSAT Mail Alias Service to End August 31, 2024 - Tevel Satellites Nearing Re-Entry - AMSAT-OSCAR 7 in Continuous Sunlight - Changes to AMSAT TLE Distribution for July 19, 2024 - ARISS News - Upcoming Satellite Operations - AMSAT Ambassador Activities - Satellite Shorts From All Over The AMSAT News Service bulletins are a free, weekly news and information service of AMSAT, The Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites. The news feed on https://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it. Please send any amateur satellite news or reports to: ans-editor [at] amsat.org You can sign up for free e-mail delivery of the AMSAT News Service Bulletins via the ANS List; to join this list see: https://mailman.amsat.org/postorius/lists/ans.amsat.org/ ------------------------------ Save the Date! Symposium 2024 Photo by Robert DuBois Mark your calendar now for the 2024 AMSAT Symposium, *October 25-27, 2024 *at the Doubletree by Hilton Tampa Rocky Point Waterfront in Tampa, Florida! Watch for announcements concerning further details as plans are formulated. ------------------------------ AMSAT Board of Directors Election Underway The nomination period for the 2024 AMSAT Board of Directors Election ended on June 15th. The following candidates have been duly nominated: - Mark Hammond, N8MH - Frank Karnauskas, N1UW - Bruce Paige, KK5DO - Paul Stoetzer, N8HM - Douglas Tabor, N6UA As three seats on the Board of Directors are up for election this year, the three candidates receiving the largest number of votes shall be declared elected to the seats. The two candidates receiving the next largest number of votes shall be declared First Alternate and Second Alternate, respectively. The voting process is now underway. AMSAT members can find candidate statements and electronic voting information on AMSAT's Wild Apricot Membership Portal <https://launch.amsat.org/2024-BoD-Election>. The voting period will conclude on September 15th and results will be announced no later than September 30th. *[ANS thanks Jeff Davis, KE9V, AMSAT Secretary for the above information]* ------------------------------ AMSAT Mail Alias Service to End August 31, 2024 A long-standing member service, the AMSAT Mail Alias Service is scheduled to end on August 31, 2024. A mail alias on AMSAT.ORG permitted people to send an email to members without knowing their actual internet email address. They just needed to know their amateur radio callsign. Unfortunately, the unchecked rise in domain name hacking and email account high-jacking has made it impossible to sustain this service at a cost-effective level. The number of callsign(a)amsat.org email accounts that had been hijacked and converted to zombie spam accounts over the years had led many internet service providers and gateway centers to ban all @ amsat.org email addresses, including those business accounts of AMSAT officers and officials. The tireless efforts of AMSAT’s all volunteer IT staff has worked for years to repair much of the damage, but AMSAT still get complaints from members who are not getting their personal emails, ANS bulletins or AMSAT-BB posts because of persistent delivery problems. It has come to the point where the AMSAT volunteer IT staff can no longer keep up with the maintenance requirements to keep the alias mail list clean and to work with email gateways to remove blocks. And, after considerable investigation into alternative paid email services, AMSAT leadership decided that the money required to keep an email alias system alive would be better spent on building and flying satellites for its members. Persons using the Mail Alias Service should begin to migrate to different email accounts so they do not lose receipt of personal emails, AMSAT News Service Weekly Bulletins, AMSAT-BB posts, or official messages from AMSAT itself. Members are especially asked to make sure they are NOT using a callsign(a)amsat.org as their registered email address in the AMSAT membership portal. Members can easily change their registered member email address by logging into the portal and updating their profile. *[ANS thanks AMSAT for the above information]* ------------------------------ Tevel Satellites Nearing Re-Entry The Tevel series of satellites is approaching re-entry, with Tevel-5 already re-entering on July 18th. The Tevel mission consists of 8 satellites developed by the Herzliya Science Center in Israel, each carrying an FM transponder. The satellites were built by 8 schools in different parts of Israel and launched in January 2022 on the SpaceX Falcon 9 Transporter-3 mission. A number of other satellites with amateur radio payloads are also re-entering shortly. A list of satellites approaching re-entry can be found at http://lu7aa.org/decay.asp *[ANS thanks Herzliya Science Center, AMSAT Argentina, and LU7AA for the above information]* ------------------------------ *The 2024 Coins Are Here Now!Help Support GOLF and Fox Plus.**Join <https://www.amsat.org/join-the-amsat-presidents-club/> the AMSAT President’s Club today!* ------------------------------ AMSAT-OSCAR 7 in Continuous Sunlight AMSAT-OSCAR 7, soon to celebrate its 50th birthday on November 15, 2024, is now in a period of continuous sunlight through May 22, 2027. While in continuous sunlight, the satellite's internal timer is expected to switch between the two transponders - Mode A (29 MHz downlink and 145 MHz uplink) and Mode B (145 MHz downlink and 29 MHz uplink) every 24 hours. Post reports and check current status on the AMSAT Live OSCAR Satellite Status Page <https://www.amsat.org/status/>. After a few days in continuous sunlight, it should be possible to determine the actual or approximate time the satellite switches. *[ANS thanks AMSAT and EA1PA for the above information]* ------------------------------ Changes to AMSAT TLE Distribution for July 19, 2024 Two Line Elements or TLEs, often referred to as Keplerian elements or keps in the amateur community, are the inputs to the SGP4 standard mathematical model of spacecraft orbits used by most amateur tracking programs. Weekly updates are completely adequate for most amateur satellites. TLE bulletin files are updated Thursday evenings around 2300 UTC, or more frequently if new high interest satellites are launched. More information may be found at https://www.amsat.org/keplerian-elements-resources/ The following satellites have been removed from this week's AMSAT TLE distribution: MESAT1 remains on this distribution. No signals have been detected from any other amateur spacecraft launched as part of NASA's ELaNa 43 mission. ELaNa 43 OBJECT A NORAD Cat ID 60203 No amateur signal detected ELaNa 43 OBJECT B NORAD Cat ID 60204 No amateur signal detected ELaNa 43 OBJECT C NORAD Cat ID 60205 No amateur signal detected ELaNa 43 OBJECT D NORAD Cat ID 60206 No amateur signal detected ELaNa 43 OBJECT E NORAD Cat ID 60207 No amateur signal detected ELaNa 43 OBJECT F NORAD Cat ID 60208 No amateur signal detected ELaNa 43 OBJECT H NORAD Cat ID 60210 No amateur signal detected Zhou Enlai NORAD Cat ID 43156 Decayed from orbit on or about 17 July 2024 TEVEL-5 NORAD Cat ID 50998 Decayed from orbit on or about 18 July 2024 The following satellites have been added to this week's AMSAT TLE distribution: GRBBeta NORAD Cat ID 60236 IARU coordinated downlinks on 145.935 MHz, 436.785 MHz and 2405.000 MHz ROBUSTA-3A NORAD Cat ID 60241 IARU coordinated 9k6 GMSK with AX.25 downlink on 436.750 MHz Thanks to Nico PA0DLO for identifying the two new spacecraft. *[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information]* ------------------------------ *Need new satellite antennas? Purchase an M2 LEO-Pack from the **AMSAT Store! <https://amsat.org/product-category/hardware/>**When you purchase through **AMSAT, a portion of the proceeds goes towards **Keeping Amateur Radio in Space.* ------------------------------ ARISS News Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide. *Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD* The ISS callsign is presently scheduled to be RSØISS The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC *Arizona Science Center, Phoenix, AZ, telebridge via AB1OC* The ISS callsign is presently scheduled to be NA1SS The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down), If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html *[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information]* ------------------------------ Upcoming Satellite Operations A growing number of satellite rovers are currently engaged in sharing their grid square activations on https://hams.at. By visiting the website, you gain easy access to comprehensive information about the operators responsible for activating specific grid squares. Additionally, you have the ability to assess the match score between yourself and a particular rover for a given pass, while also being able to identify the upcoming satellite passes that are accessible from your location. *N8MR* will be in *EN57*, with roves to EN67 from Aug 2 thru Aug 10. Icom 9700, Arrow and Alaskan (IO-117) antennas. Listening for Europe on linear eastern passes, at least two of these on CW. Can operate CW for NA ops, if anyone wants it. I can rove to EN56, only if needed. Posting passes to http://hams.at <https://t.co/VDIY566ji4> a day in advance. All QSOs to LoTW as N8MR. *[ANS thanks Ian Parsons, K5ZM, AMSAT Rover Page Manager, for the above information]* ------------------------------ * Want to fly the colors on your own grid expedition?* Get an AMSAT car flag and other neat stuff from our Zazzle store <https://www.zazzle.com/store/amsat_gear>! 25% of the purchase price of each product goes towards Keeping Amateur Radio in Space ------------------------------ AMSAT Ambassador Activities AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events. AMSAT Ambassador Clint Bradford, K6LCS, says, "Think a 75-minute presentation on "working the easy satellites" would be appropriate for your club or event? Let me know by emailing me at k6lcsclint (at) gmail (dot) com or calling me at 909-999-SATS (7287)!" Clint has NEVER given the exact same show twice: EACH of the 150+ presentations so far has been customized/tailored to their audiences. Scheduled Events *2024 KARS / ARRL Idaho State Convention* *August 3, 2024* Post Falls, ID K7SYS *Huntsville Hamfest**August 17-18, 2024* Huntsville, AL AMSAT Booth and Forum N8DEU and W4FCL *Northeast HamXpostion**August 22-25, 2024* Best Western Royal Plaza Hotel & Trade Center 181 Boston Post Road W Marlborough, MA 01752 *Greater Louisville Hamfest**September 7, 2024* Shepherdsville, KY AMSAT Forum and Information Table W4FCL *Central Kentucky Hamfest**October 5, 2024* Lexington, KY AMSAT and Educational Satellites Forum and Information Table AI4SR and W4FCL *North Star Radio Convention**October 5, 2024* Hennepin Technical College (North Campus) Brooklyn Park, Minn. AMSAT Forum and Information Table KØJM and ADØHJ *2024 AMSAT Space Symposium and Annual General Meeting**October 25-27, 2024* Doubletree by Hilton Tampa Rocky Point Waterfront 3050 N Rocky Point Dr W Tampa, FL 33607 *Stone Mountain Hamfest, ARRL State Convention* *November 2-3, 2024* Stone Mountain, GA K4RGK *[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information]* ------------------------------ Satellite Shorts from All Over + XW-2B has recently returned to reliable service. XW-2B has an inverting linear transponder with an uplink of 435.090-435.110 MHz and a downlink of 145.730-145.750 MHz. + The May/June 2024 issue of *The **AMSAT** Journal* is now available to members on AMSAT’s Member Portal at https://launch.amsat.org/The_AMSAT_Journal + SpaceX's Falcon 9 suffered a rare failure on July 11th when the upper stage “experienced an anomaly and was unable to complete its second burn," trapping 20 Starlink satellites in an unusably low orbit. More information at https://spacenews.com/starlink-satellites-lost-on-falcon-9-upper-stage-fail… (ANS thanks SpaceNews for the information) ------------------------------ Join AMSAT today at https://launch.amsat.org/ In addition to regular membership, AMSAT offers membership to: - Societies (a recognized group, clubs or organization). - Primary and secondary school students are eligible for membership at one-half the standard yearly rate. - Post-secondary school students enrolled in at least half time status shall be eligible for the student rate for a maximum of 6 post-secondary years in this status. - Memberships are available for annual and lifetime terms. Contact info [at] amsat.org for additional membership information. *73 and remember to help Keep Amateur Radio in Space!* *This week's ANS Editor,* *Paul Stoetzer, N8HM* *n8hm [at] amsat.org <http://amsat.org>* *ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002*

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Re: TEVEL-5 and TEVEL-6 off the list
by David Spoelstra 20 Jul '24

20 Jul '24

Sorry to hear that. They were great birds. I made hundreds of contacts on them. -David On Fri, Jul 19, 2024, 2:30 PM david.greenberg--- via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Hello All, > > It looks like TEVEL-5 and 6 were removed from the Keplerian elements > lists. I guess that this means a re-entry. > > > > 73, > > > > David 4X1DG > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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Demo passes for "Moon Day" at the Frontiers of Flight Museum, Dallas Texas
by Thomas Schuessler 20 Jul '24

20 Jul '24

Hi all, Below are some passes for Saturday July 20, 2024 that we will try to work as part of the "Moon Day" public STEM event at the Frontiers of Flight Museum in Dallas Texas. Please look out for myself, N5HYP, or Virginia Smith, NVF and give us a call. Hopefully we will have some museum visitors in tow to show them how this Amateur Radio satellite thing works. Sorry but the times are in Central DST, USA time, not UTC. This is the chart I will be posting so did not want to confuse folks not used to UTC. AOS - LOS DURAO-91 11:28 11:37 13 216 - 321 Tevel-7 11:32 11:37 06 053 -139 SO-121 12:27 12:36 69 008 –197 Tevel-7 13:01 13:07 19 351- 218 SO-50 14:21 14:33 75 203 - 031 See you on the Birds tomorrow morning.73Tom, N5HYP

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Re: UVSQ-transponder question
by Thomas Schuessler 20 Jul '24

20 Jul '24

Lilacsat-2 is so random. The DF2ET page showed it to be timed as active a week ago Saturday but it was not. Tom, N5HYP On Wednesday, July 17, 2024 at 11:58:28 AM CDT, JOHN GEIGER via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Thanks for the information and the DF2ET is a useful webpage. I didn't know that Lilacsat-2 had a timer on it, but it doesn't look like it has been active for a while either according to the AMSAT Active page. 73 John AF5CC Sent using Zoho Mail ---- On Wed, 17 Jul 2024 11:54:03 -0500 Ignacio Granados Vega via AMSAT-BB <amsat-bb(a)amsat.org> wrote --- Hello John. You can have updates here. https://twitter.com/uvsqsat https://www.df2et.de/tevel/ 73 -TI3IES El mié, 17 jul 2024 a las 10:38, JOHN GEIGER via AMSAT-BB (<amsat-bb(a)amsat.org>) escribió: Is the FM transponder ever turned on on UVSQ any longer, and if it is, how can I find the schedule? They used to post activations on this list but I haven't seen any emails about it for some time. 73 John AF5CC Sent using Zoho Mail ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org -- ========================================== Ignacio Granados Vega - TI3IES Cartago, Costa Rica========================================== Cuidemos el medio ambiente. Por favor no imprima este correo si no es necesario. ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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TEVEL-7
by david.greenberg 19 Jul '24

19 Jul '24

Hello All,TEVEL-7 FM transponder has been activated, starting from today 19.07.24 20:25U for 72 hours.This is probably the last transponder operation of the TEVEL satellites. We need the beacon transmissions for some student projects.73,David 4X1DGנשלח מה-Galaxy שלי

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Re: TEVEL-5 and TEVEL-6 off the list
by Joseph Fitzgerald (KM1P) 19 Jul '24

19 Jul '24

TEVEL 5 and 6 had perigees well under 200 km associated with their last published TLE sets, so they are almost certainly part of our atmosphere at this point. The remaining TEVEL satellites are a little higher, they will remain in orbit for another 2 weeks or so. See for example TEVEL-3: https://celestrak.org/NORAD/elements/graph-altitude.php?CATNR=50988 Joe Fitzgerald (KM1P) AMSAT Orbital Elements Manager

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TEVEL-5 and TEVEL-6 off the list
by david.greenberg＠bezeqint.net 19 Jul '24

19 Jul '24

Hello All, It looks like TEVEL-5 and 6 were removed from the Keplerian elements lists. I guess that this means a re-entry. 73, David 4X1DG

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Upcoming ARISS Contact Schedule as of 2024-07-18 15:00 UTC
by aj9n＠aol.com 18 Jul '24

18 Jul '24

Upcoming ARISS Contact Schedule as of 2024-07-18 15:00 UTC Quick list of scheduled contacts and events: Hokusetsu District Osaka Council Scout Association of Japan, Toyonaka, Japan, direct via JJ3YDM The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Mike Barratt KD5MIJ The ARISS mentor is 7M3TJZ Contact was successful: Thu 2024-07-18 08:23:52 UTC 49 deg (***) Congratulations to the Hokusetsu District Osaka Council Scout Association of Japan scouts, Mike, mentor 7M3TJZ, and ground station JJ3YDM! (***) Watch for Livestream at https://www.youtube.com/watch?v=DYb3gINVYgE Aznakaevsky district schools of the Republic of Tatarstan, Tatarstan Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Aleksandr Grebyonkin RZ3DSE The ARISS mentor is RV3DR Contact is go for Sat 2024-07-27 13:45 UTC Arizona Science Center, Phoenix, AZ, telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Matthew Dominick KCØTOR The ARISS mentor is K4RGK Contact is go: Sat 2024-07-27 18:24:08 UTC 41 deg The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2024-07-18 15:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2024-07-18 15:00 UTC. (***) https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens July 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by September 6, 2024 at 11:59 PM Pacific Time (Sept. 7, 2024, 06:59 UTC). (***) Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on July 22, 2024, at 7 PM ET (23:00 UTC). The Zoom link to sign up is: https://us06web.zoom.us/meeting/register/tZErf-ihrDktG9OphYxAjfz7nbONV0YcwY… (***) Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system is back on board but awaiting re-installation. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 239 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 152 (***) Gaston ON4WF with 124 Peter IN3GHZ with 119 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1736. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1641. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: UVSQ-transponder question
by Thomas Schuessler 17 Jul '24

17 Jul '24

1 0

Re: UVSQ-transponder question
by JOHN GEIGER 17 Jul '24

17 Jul '24

Thanks for the information and the DF2ET is a useful webpage. I didn't know that Lilacsat-2 had a timer on it, but it doesn't look like it has been active for a while either according to the AMSAT Active page. 73 John AF5CC Sent using {0} ---- On Wed, 17 Jul 2024 11:54:03 -0500 Ignacio Granados Vega via AMSAT-BB <amsat-bb(a)amsat.org> wrote --- Hello John. You can have updates here. https://twitter.com/uvsqsat https://www.df2et.de/tevel/ 73 -TI3IES El mié, 17 jul 2024 a las 10:38, JOHN GEIGER via AMSAT-BB (<mailto:amsat-bb@amsat.org>) escribió: Is the FM transponder ever turned on on UVSQ any longer, and if it is, how can I find the schedule? They used to post activations on this list but I haven't seen any emails about it for some time. 73 John AF5CC Sent using ----------------------------------------------------------- Sent via AMSAT-BB(a)http://amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)http://amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org -- ========================================== Ignacio Granados Vega - TI3IES Cartago, Costa Rica ========================================== Cuidemos el medio ambiente. Por favor no imprima este correo si no es necesario. ----------------------------------------------------------- Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Re: UVSQ-transponder question
by Ignacio Granados Vega 17 Jul '24

17 Jul '24

Hello John. You can have updates here. https://twitter.com/uvsqsat https://www.df2et.de/tevel/ 73 -TI3IES El mié, 17 jul 2024 a las 10:38, JOHN GEIGER via AMSAT-BB (< amsat-bb(a)amsat.org>) escribió: > > Is the FM transponder ever turned on on UVSQ any longer, and if it is, how > can I find the schedule? They used to post activations on this list but I > haven't seen any emails about it for some time. > > 73 John AF5CC > > Sent using Zoho Mail > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org -- ========================================== *Ignacio Granados Vega - TI3IES* Cartago, Costa Rica ========================================== *Cuidemos el medio ambiente. Por favor no imprima este correo si no es necesario.*

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UVSQ-transponder question
by JOHN GEIGER 17 Jul '24

17 Jul '24

Is the FM transponder ever turned on on UVSQ any longer, and if it is, how can I find the schedule? They used to post activations on this list but I haven't seen any emails about it for some time. 73 John AF5CC Sent using {0}

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Re: sqf for mesat1
by Mark L. Hammond 17 Jul '24

17 Jul '24

Very handy, Mark. Here is a line that should work.. MESAT1,435798.8,145925.0,USB,LSB,REV,0,0,Telem Beacon Mark L. Hammond [N8MH] AMSAT Director and Command Station On Wed, Jul 17, 2024 at 7:57 AM Mark Johns, K0JM via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > https://www.amsat.org/doppler-sqf-line-generator/ > -- > Mark D. Johns, KØJM > AMSAT Ambassador & News Service Editor > Brooklyn Park, MN USA EN35hd > ----------------------------------------------- > "Heaven goes by favor; if it went by merit, > you would stay out and your dog would go in." > ---Mark Twain > > > On Tue, Jul 16, 2024 at 11:39 PM Bob Johnson via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > >> I'm looking for the sqf file for mesat1 >> 73 Bob W7LRD >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring membership. >> Opinions expressed >> are solely those of the author, and do not reflect the official views of >> AMSAT-NA. >> Acceptable Use and Privacy Policies available at >> https://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to amsat-bb-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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Re: sqf for mesat1
by Mark Johns, K0JM 17 Jul '24

17 Jul '24

https://www.amsat.org/doppler-sqf-line-generator/ -- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd ----------------------------------------------- "Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain On Tue, Jul 16, 2024 at 11:39 PM Bob Johnson via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > I'm looking for the sqf file for mesat1 > 73 Bob W7LRD > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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sqf for mesat1
by Bob Johnson 17 Jul '24

17 Jul '24

I'm looking for the sqf file for mesat1 73 Bob W7LRD

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Re: MESAT1 telemetry with FlexRadio
by Mark L. Hammond 16 Jul '24

16 Jul '24

Hello JoAnne and friends--- For the IC-9700 I'm using just USB (not USB-D) and have reset the filters as wide as possible for that mode (all three in fact, so it's always the right one, hihi).. I can print using audio over USB or from the ACC1 jack on the back into an external sound card, so we have several options for getting audio.from the 9700. In Foxtelem, be sure to use Telem Format "BPSK 1200bps LTM". I try to adjust the RX frequency so the bottom left screen shows "Carrier: " values of about 1200-1500. The TLEs are good and have been, which makes the Doppler corrections good enough for automation. I'm working on the station at the university and need to tweak a few things, but the M2 Leo pack is just enough to print the bird when elevations are "good". The preamp is inside, so fixin' that is in the near future. So, keep at it, group! This is an opportunity for many of us to work on the 70cm receiving sensitivity of our stations--that's what I'm doing ;) 73, Mark L. Hammond [N8MH] AMSAT Director and Command Station On Tue, Jul 16, 2024 at 6:16 PM JoAnne Maenpaa via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Charlie and David, > > Thanks for the pointers. I've found a couple of things to tweak based on > your messages. > > I'm using the S.A.T. tracker box so I don't have SQF files - but I've > tweaked it's satellite frequency there so I'm hoping I'll be closer to the > frequency. > > I'm using my Greencube setup where the IC-9700 received USB-D audio goes > into the UZ7HO soundmodem then the OZ9AAR terminal. I hope that I'm not too > far off track substituting the FoxTelem software configuration in place of > the Greencube software configuration. > > Let's see what happens after a few MESAT1 passes, > > > On 7/16/2024 3:49 PM, Charles Rubenstein via AMSAT-BB wrote: > > I am using a Flex 6600M with Q5 Xvrtrs. Here is what I’m using for MESAT1 > telemetry. > > I am using a download frequency of *435798.5*. You should use USB (DIGIU > on the Flex) Make an entry using this downlink frequency in your > Doppler.SQF file, and restart SatPC32. Make sure you are using DAX > *Audio *RX1, not DAX IQ. > > In the telemetry software, I also checked the box “find signal” (I *think* this > might be AFC) > Make sure you also check the box to upload data. > > I have successfully captured data from 8 passes. > > The satellite isn’t real strong, but it has been improving. The best > passes here in EM79 have been early mornings (before I wake up hi hi) but I > had success with that setup. > > YMMV, > > 73 de Charlie KB8CR > > > On Jul 16, 2024, at 4:34 PM, Mark Johns, K0JM via AMSAT-BB > <amsat-bb(a)amsat.org> <amsat-bb(a)amsat.org> wrote: > > I appreciate knowing I'm in good company, JoAnne. > > Yes, I get roughly 10 seconds transmitted every two minutes. I hear it 3 > or 4 times in a pass. I keep trying different modes in FoxTelem, but > nothing locks up. > -- > Mark D. Johns, KØJM > AMSAT Ambassador & News Service Editor > Brooklyn Park, MN USA EN35hd > ----------------------------------------------- > "Heaven goes by favor; if it went by merit, > you would stay out and your dog would go in." > ---Mark Twain > > > On Tue, Jul 16, 2024 at 3:02 PM JoAnne Maenpaa via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > >> > If anyone else out there is successfully using a similar setup, I'd >> like to hear from you off list. >> >> It would be OK to reply on the list also. >> >> I've been listening with an IC-9700 w/ LEO pack and FoxTelem software. >> I've also been hearing strong signals but so far decoding nothing. If I >> am indeed hearing MESAT1 then a single ~5-10 second burst of data once >> per pass hasn't helped with testing my setup - and fixing things that >> need attention. >> >> Decoding prior Fox satellites with FoxTelem has been pretty >> straigtforward. >> >> -- >> 73 de JoAnne K9JKM >> joanne.k9jkm(a)gmail.com >> BM DMR TG 98006 >> >> >> ----------------------------------------------------------- >> >> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring membership. >> Opinions expressed >> are solely those of the author, and do not reflect the official views of >> AMSAT-NA. >> Acceptable Use and Privacy Policies available at >> https://www.amsat.org/about-amsat/ >> >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org >> To unsubscribe send an email to amsat-bb-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ > > View archives of this mailing list athttps://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org > > > -- > 73 de JoAnne K9JKMjoanne.k9jkm(a)gmail.com > BM DMR TG 98006 > > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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