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

Re: satpc32 ungultige gleitkommaoperation
by crohtun＠aol.com 14 Dec '24

14 Dec '24

When I get this error, it’s almost always because I have a defunct satellite in my chosen list of sats. Remedy: find and delete. On rare occasions, the error has stemmed from a format error in the downloaded TLE file. Remedy: use a different TLE source or wait for your favorite one to correct the error. 73, Ray KN2K Sent from the all new AOL app for iOS On Saturday, December 14, 2024, 5:27 PM, nick via AMSAT-BB <amsat-bb(a)amsat.org> wrote:  Please tell me how to fix the ungultige gleitkommaoperation error message/ Tnx nick nick Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School Disagree I Learn ----------------------------------------------------------- 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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satpc32 ungultige gleitkommaoperation
by nick 14 Dec '24

14 Dec '24

Please tell me how to fix the ungultige gleitkommaoperation error message/ Tnx nick nick Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School Disagree I Learn

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Re: Satellite names and TLEs
by Jean Marc Momple 14 Dec '24

14 Dec '24

Nico, Totally agree as per experience with MO-112. As there was another satellite deployed from the ISS a few minutes there was ambiguity about which is which, I confirmed same by tracking MO-112 and informed both Space Track and Dr Kelso of Celestrak and a few days after deployment all the TLE were populated correctly. Indeed if the sat operators do inform the institution and identify their bird it makes life easier for all. I take this opportunity to make an appeal to the worldwide HAM community, we all benefit a lot from free software which are voluntary huge work by the authors such as Celestrak mentioned above (there many others and the list is too long to list here) but the essential message from me is please: buy a cup for coffee for them by a donation to encourage them with such such initiatives and more continue to help our operations. I personally do donate a few $ for all software I use as these guys doing such a great work deserve a minimum of recognition from all of us using their superb tools. 73 Jean Marc (3B8DU) > On Dec 14, 2024, at 7:22 PM, Nico Janssen via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > David, > > Let me elaborate a bit on Joe's great comments. > > The source of the TLEs in the Satellite Catalog (SatCat) is the 18thSDS. They > publish only the TLEs of non-classified objects through Space-Track.org, > which is the interface between the 18thSDS and 'the outside world'. The TLEs > for classified objects are generated and published by amateur observers. > > For some reason many people continue to use the name NORAD when referring > to the SatCat. But NORAD has NOT been involved in the SatCat since the early > seventies of the previous century. Since that time several other military > organizations have been responsible for the maintenance of the SatCat. > Currently it is the 18thSDS. The unique identification numbers for the objects > in the SatCat are called Catalog Numbers (CatNr), so not NORAD Numbers. Some > other names are also used, e.g. Object Numbers or, more recently, Satellite > Numbers (SatNo). But that last name suggests that the objects are always > satellites, while of course they can be Rocket Bodies (R/B) or pieces of > debris. So again, the name NORAD does NOT apply. Best to remove that word > completely from your vocabulary ;-) . > > Another misunderstanding is that the 18thSDS identifies new satellites after > their launch. That is not what happens. In the radar tracking network they > can only see 'blips' on their radar screens. But they can not tell which > blip belongs to which satellite. They can generate TLEs for all the observed > objects without knowing which satellites are involved. So they depend on > outsiders to identify the satellites for them. I try to help by carefully > matching measured doppler curves with doppler curves that are calculated > using the available TLEs. Usually my ID information is used in CelesTrak's > SatCat. But the 18thSDS applies the strict rule that they may only accept > ID information coming from the Owner/Operator of the involved satellite. > Unfortunately many satellite owners don't know that they are responsible > for identifying their satellite and then inform the 18thSDS accordingly. > Also many foreign entities don't (want to) inform the 18thSDS of their > satellite IDs. Therefore you see many unidentified objects in the SatCat, > even though IDs are available through other sources. > > 'Satellite names' is another long discussion... > > 73, > Nico PA0DLO > > On 13-12-2024 21:47, David Spoelstra via AMSAT-BB wrote: >> I’m trying to understand the process of naming satellites and putting their TLEs in the official sources. >> >> It seems like Space-Track is the official source of TLEs. Is that correct? It seems like CelesTrak and AMSAT are secondary sources. Is that correct? >> >> It seems like the process is this: >> When a satellite is first launched, various people associated with it post preliminary TLEs with a temporary ID number. >> At some point an official ID number is generated. Who does this? I’m assuming NORAD? >> At some point, the satellite is given a name like “AO-123” versus “2024-199AY” or “OBJECT AY”. Who does this? Is that an “official” name that all TLEs should use? >> At some point it seems like the TLE sources align with the same name. Who drives that? >> >> For example, let’s take AO-123. AMSAT lists it as: >> AO-123 >> 1 61781U 24199AY 24347.80600981 .00010127 00000-0 42052-3 0 9997 >> 2 61781 97.3799 212.0032 0019112 106.8236 253.5099 15.23855779 49614 >> >> Space-Track lists it as: >> 0 OBJECT AY >> 1 61781U 24199AY 24348.46265841 .00010225 00000-0 42439-3 0 9990 >> 2 61781 97.3798 212.6494 0019118 104.7477 255.5880 15.23869705 49716 >> >> CelesTrak lists it as: >> 2024-199AY >> 1 61781U 24199AY 24348.46265841 .00010225 00000+0 42439-3 0 9999 >> 2 61781 97.3798 212.6494 0019118 104.7477 255.5880 15.23869705 49716 >> >> When will Space-Track and CelesTrak list it as AO-123? Who decides that? >> >> Also, why is AMSAT’s TLEs so far behind Space-Track and CelesTrak? Notice AMSAT lists revolution 49614 versus the others that list revolution 49716 so it’s quite a bit behind. >> >> Lastly, sometimes the TLE sources never seem to align on a name. A good example of this is AO-91. AMSAT lists it as: >> AO-91 >> 1 43017U 17073E 24347.62953177 .00010752 00000-0 59525-3 0 9997 >> 2 43017 97.5481 217.2046 0193324 54.2789 307.6249 14.99383406382348 >> >> However, CelesTrak lists it as: >> RADFXSAT (FOX-1B) >> 1 43017U 17073E 24347.89647055 .00011020 00000+0 60999-3 0 9996 >> 2 43017 97.5480 217.4635 0193277 53.3813 308.5014 14.99389431382386 >> >> Why don’t they use the same name after all these years? Who decides that? >> >> Thanks for helping me to understand the intricacies of this process. >> >> -David, N9KT >> >> >> >> ----------------------------------------------------------- >> >> 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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ARISS News Release No. 24-91
by David H Jordan 14 Dec '24

14 Dec '24

*ARISS News Release No. 24-91* *Dave Jordan, AA4KN * *ARISS PR* *dave.jordan(a)ariss-usa.org <dave.jordan(a)ariss-usa.org>* *FOR IMMEDIATE RELEASE* *ARISS Contact is Scheduled with Students at * *Zespół Szkół Łączności, Warsaw, Poland* December 14, 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 Zespół Szkół Łączności located in Warsaw, Poland. 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. Zespół Szkół Łączności (Communications School Complex) in Warsaw (about 800 students ages 14-19) consists of two schools: Technikum Łączności, a technical high school specializing in telecommunications, and XCVI Liceum Ogólnokształcące, a general education high school. A number of the school’s science clubs allow students to participate and learn more about Space communication (ZSL SPACE), telecommunication/cyber security (IT Factory Academy), and machine learning (Cisco Academy). Students have also competed in NASA Space Apps Challenge Hackathon, Moon Camp Challenge competition, CanSat competition (students designed and built a mini communication satellite, SaTech), STEM competition of Warsaw University of Technology, and Astro Pi (missions Zero and Space Lab). In preparation for the ARISS contact, the school's SP5KEU amateur radio club has been reactivated to engage students in team-based STEM projects using telecommunications and amateur radio technologies. The school's cooperation with various organizations and scientific institutions enables students to develop practical skills in real-life conditions. Members of the Amateur Radio Club (LOK) of Warsaw (SP5KAB) are supporting the school during this ARISS contact. School staff are also collaborating with the Polish Amateur Astronomy Association (PTMA) in preparation for this contact. This will be a direct contact via Amateur Radio allowing students to ask their questions of astronaut Nick Hague, amateur radio call sign KG5TMV. 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 Warsaw, Poland. Amateur radio operators using call sign SP5KAB, will operate the ground station to establish and maintain the ISS connection. The ARISS radio contact is scheduled for December 16, 2024 at 9:35 am CET (Poland) (8:35 UTC, 3:35 am EST, 2:35 am CST, 1:35 am MST, 12:35 am PST). The public is invited to watch the live stream at: https://www.youtube.com/live/DBafZYpxolI *_______________________________* As time allows, students will ask these questions: 1. What was your first thought when you saw Earth from space? 2. How do you repair damage to the exterior of ISS caused by space debris? 3. Is it easy to fall asleep in space? 4. What was the most surprising thing you have seen or experienced that you didn't expect before the mission? 5. How do you stay healthy and fit in space? 6. How do you prepare your meals? 7. What do your family and friends say about you living in space? 8. Do you feel any changes in your body due to weightlessness? 9. What do you find challenging while living in the ISS? 10. Is it possible to take a picture of stars when the station is in sunlight? 11. What was the most unusual experiment that you have conducted? 12. Do you have any dreams related to space flights? 13. What is your most memorable moment from this mission? 14. Have you experienced situations that require quick reaction and improvising? 15. Do you have a similar or different routine for working on the ISS every day? 16. If you were to give future generations advice, what would it be? 17. What do you do in your free time? 18. What impresses you the most about being in space? 19. Does the ISS use AI to operate in space? 20. How hard is it to get used to living on the 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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Re: Satellite names and TLEs
by Mark Johns, K0JM 14 Dec '24

14 Dec '24

1. The owner of the satellite generally publishes the pre-launch TLEs, which are only estimates. 2. NORAD identifies the object and assigns an object number. Sometimes, with multiple satellites on the same launch, it can take days or weeks to determine which object is which. But the object number, once assigned, remains unchanged. 3. AMSAT -- specifically, the AMSAT VP-Operations, assigns OSCAR numbers when requested to do so by the owner of the satellite. Not every owner makes this request (hence, RS-44 or LILACSAT-2, etc.). 4. Not every agency outside of amateur radio circles recognizes OSCAR numbers, and so they use the pre-launch name or something else. Keplerian elements released by AMSAT always do go by the OSCAR number, but CeleTrak and others may not. Actually, the names don't mean much. You can call a satellite anything you want. The real identifier is the NORAD object number. That's the only part of the TLE that is consistent. -- 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 Fri, Dec 13, 2024 at 2:47 PM David Spoelstra via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > I’m trying to understand the process of naming satellites and putting > their TLEs in the official sources. > > It seems like Space-Track is the official source of TLEs. Is that correct? > It seems like CelesTrak and AMSAT are secondary sources. Is that correct? > > It seems like the process is this: > > 1. > > When a satellite is first launched, various people associated with it > post preliminary TLEs with a temporary ID number. > 2. > > At some point an official ID number is generated. Who does this? I’m > assuming NORAD? > 3. > > At some point, the satellite is given a name like “AO-123” versus > “2024-199AY” or “OBJECT AY”. Who does this? Is that an “official” name that > all TLEs should use? > 4. > > At some point it seems like the TLE sources align with the same name. > Who drives that? > > > For example, let’s take AO-123. AMSAT lists it as: > > AO-123 > > 1 61781U 24199AY 24347.80600981 .00010127 00000-0 42052-3 0 9997 > > 2 61781 97.3799 212.0032 0019112 106. > <http://voice.google.com/calls?a=nc,%2B10019112106>8236 253.5099 > 15.23855779 49614 > > Space-Track lists it as: > > 0 OBJECT AY > > 1 61781U 24199AY 24348.46265841 .00010225 00000-0 42439-3 0 9990 > > 2 61781 97.3798 212.6494 0019118 104. > <http://voice.google.com/calls?a=nc,%2B10019118104>7477 255.5880 > 15.23869705 49716 > > CelesTrak lists it as: > > 2024-199AY > > 1 61781U 24199AY 24348.46265841 .00010225 00000+0 42439-3 0 9999 > > 2 61781 97.3798 212.6494 0019118 104. > <http://voice.google.com/calls?a=nc,%2B10019118104>7477 255.5880 > 15.23869705 49716 > > When will Space-Track and CelesTrak list it as AO-123? Who decides that? > > Also, why is AMSAT’s TLEs so far behind Space-Track and CelesTrak? Notice > AMSAT lists revolution 49614 versus the others that list revolution 49716 > so it’s quite a bit behind. > > Lastly, sometimes the TLE sources never seem to align on a name. A good > example of this is AO-91. AMSAT lists it as: > > AO-91 > > 1 43017U 17073E 24347.62953177 .00010752 00000-0 59525-3 0 9997 > > 2 43017 97.5481 217.2046 0193324 54.2789 307.6249 14.99383406382348 > > However, CelesTrak lists it as: > > RADFXSAT (FOX-1B) > > 1 43017U 17073E 24347.89647055 .00011020 00000+0 60999-3 0 9996 > > 2 43017 97.5480 217.4635 0193277 53.3813 308.5014 14.99389431382386 > > Why don’t they use the same name after all these years? Who decides that? > > Thanks for helping me to understand the intricacies of this process. > > -David, N9KT > > > ----------------------------------------------------------- > > 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: Satellite names and TLEs
by Joseph Fitzgerald (KM1P) 14 Dec '24

14 Dec '24

>It seems like Space-Track is the official source of TLEs. Is that correct? It seems like CelesTrak and AMSAT are > secondary sources. Is that correct? This is almost always the case, but there are some situations that arise that require us to get element sets from other sources, usually the satellite operator. >It seems like the process is this: * >1. When a satellite is first launched, various people associated with it post preliminary TLEs with a temporary ID number. 1. >2. At some point an official ID number is generated. Who does this? I’m assuming NORAD? The "official" number is the Satellite Catalog number generated by the United State Space Force's 18th Space Defense Squadron (18SDS). This number is generated as soon as the analysts at Vandenburg Space Force Base get tracking data (radar echoes or images) of a new object detected in orbit. >3. At some point, the satellite is given a name like “AO-123” versus “2024-199AY” or “OBJECT AY”. Who does this? Is that an “official” name that all TLEs should use? Naming is essentially up to the organization that is using the name. For example, object 29661 was known as RAFT, RAFT1, Navy-OSCAR 60, NO-60 or in my house "Daddy's Satellite", although to my knowledge neither of my kids issued any TLEs for that object. 1. >4. At some point it seems like the TLE sources align with the same name. Who drives that? 18th SDS works with the satellite owner to assign a name to an object. It can take some time for an owner to be sure their spacecraft matches a particular Satellite Catalog number while a flock of cubesats are all clumped together after launch. It is only after the objects drift apart that it is possible to make a match. In the case of amateur satellites people rely heavily on the work of Nico, PA0DLO who uses careful analysis of Doppler shift to match a downlink with TLEs for a particular object number. >When will Space-Track and CelesTrak list it as AO-123? Who decides that? Given the current geopolitical situation, the satellite owner may not be in a big rush to work with the US military. TS Kelso and his team decide what happens on CelesTrak. >Also, why is AMSAT’s TLEs so far behind Space-Track and CelesTrak? Notice AMSAT lists revolution 49614 versus > the others that list revolution 49716 so it’s quite a bit behind. AMSAT issues a TLE bulletin in the first hour of the UTC day using the most recent information available, Note that the last digit of each line of a TLE is a checksum, so in your example AMSAT TLEs are only 10 orbits behind, i.e less than one day. >Lastly, sometimes the TLE sources never seem to align on a name. <snip> >Why don’t they use the same name after all these years? Who decides that? AMSAT's bulletins are prepared by a team of students at the New England Sci Tech<http://www.nescitech.org> STEM education center under my guidance. If a satellite has an OSCAR number, we will use that in the form of *O-##. If no OSCAR number has been assigned, a judgement is made to use the name most familiar to the amateur satellite community. It is of course up to other organizations to use names most appropriate for their audience, and it is not unusual to see more than one, e.g ASRTU-1(AO-123). Joe Fitzgerald (KM1P) AMSAT Orbital Elements Manager

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Re: Satellite names and TLEs
by Stephen Thornber 13 Dec '24

13 Dec '24

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Satellite names and TLEs
by David Spoelstra 13 Dec '24

13 Dec '24

I’m trying to understand the process of naming satellites and putting their TLEs in the official sources. It seems like Space-Track is the official source of TLEs. Is that correct? It seems like CelesTrak and AMSAT are secondary sources. Is that correct? It seems like the process is this: 1. When a satellite is first launched, various people associated with it post preliminary TLEs with a temporary ID number. 2. At some point an official ID number is generated. Who does this? I’m assuming NORAD? 3. At some point, the satellite is given a name like “AO-123” versus “2024-199AY” or “OBJECT AY”. Who does this? Is that an “official” name that all TLEs should use? 4. At some point it seems like the TLE sources align with the same name. Who drives that? For example, let’s take AO-123. AMSAT lists it as: AO-123 1 61781U 24199AY 24347.80600981 .00010127 00000-0 42052-3 0 9997 2 61781 97.3799 212.0032 0019112 106. <http://voice.google.com/calls?a=nc,%2B10019112106>8236 253.5099 15.23855779 49614 Space-Track lists it as: 0 OBJECT AY 1 61781U 24199AY 24348.46265841 .00010225 00000-0 42439-3 0 9990 2 61781 97.3798 212.6494 0019118 104. <http://voice.google.com/calls?a=nc,%2B10019118104>7477 255.5880 15.23869705 49716 CelesTrak lists it as: 2024-199AY 1 61781U 24199AY 24348.46265841 .00010225 00000+0 42439-3 0 9999 2 61781 97.3798 212.6494 0019118 104. <http://voice.google.com/calls?a=nc,%2B10019118104>7477 255.5880 15.23869705 49716 When will Space-Track and CelesTrak list it as AO-123? Who decides that? Also, why is AMSAT’s TLEs so far behind Space-Track and CelesTrak? Notice AMSAT lists revolution 49614 versus the others that list revolution 49716 so it’s quite a bit behind. Lastly, sometimes the TLE sources never seem to align on a name. A good example of this is AO-91. AMSAT lists it as: AO-91 1 43017U 17073E 24347.62953177 .00010752 00000-0 59525-3 0 9997 2 43017 97.5481 217.2046 0193324 54.2789 307.6249 14.99383406382348 However, CelesTrak lists it as: RADFXSAT (FOX-1B) 1 43017U 17073E 24347.89647055 .00011020 00000+0 60999-3 0 9996 2 43017 97.5480 217.4635 0193277 53.3813 308.5014 14.99389431382386 Why don’t they use the same name after all these years? Who decides that? Thanks for helping me to understand the intricacies of this process. -David, N9KT

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Upcoming ARISS Contact Schedule as of 2024-12-12 01:00 UTC
by aj9n＠aol.com 12 Dec '24

12 Dec '24

Upcoming ARISS Contact Schedule as of 2024-12-12 01:00 UTC Quick list of scheduled contacts and events: Hillsboro Charter Academy, Purcellville, VA, direct via KQ4MAM 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 AA6TB Contact was successful for: Wed 2024-12-11 18:51:41 UTC 45 deg (***) Congratulations to the Hillsboro Charter Academy students, Sunita, mentor AA6TB, and ground station KQ4MAM! (***) Watch for Livestream at https://www.youtube.com/watch?v=oqKx6ytN96k and also https://live.ariss.org/ Zespół Szkół Łączności, Warszawa, Poland, direct via SP5KAB 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 Nick Hague KG5TMV The ARISS mentor is SP3QFE Contact is go for: Mon 2024-12-16 08:35:06 UTC 71 deg(***) Watch for Livestream at https://www.youtube.com/live/DBafZYpxolI (***) Sally Ride Elementary School, Orlando, Florida, direct via K1AA 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 AA4KN Contact is go for: Tue 2024-12-17 18:49:38 UTC 30 deg (***) Many times a school may make a last minute decision to do a Livestream or run into a last minute glitch requiring a change of the URL but we at ARISS may not get the URL in time for publication. You can always check https://live.ariss.org/ to see if a school is Livestreaming. 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 2024-12-12 01:00 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 2024-12-12 01:00 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 proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS has closed for contacts to be scheduled for July 1, 2025 – December 31, 2025. 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 255 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 154 Gaston ON4WF with 124 Steve VE3TBD with 124 Peter IN3GHZ with 122 **************************************************************************** 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 1807. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1698. (***) 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 **************************************************************************** Boeing CFT on orbit Sunita Williams KD5PLB Barry Wilmore SpaceX Crew-9 on orbit Nick Hague KG5TMV Alexander Gorbunov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Upcoming ARISS Contact Schedule as of 2024-12-10 20:30 UTC
by aj9n＠aol.com 10 Dec '24

10 Dec '24

Upcoming ARISS Contact Schedule as of 2024-12-10 20:30 UTC Quick list of scheduled contacts and events: Scuola Secondaria di I Grado “F.Anzani”, Cantù, Italy, telebridge via VK4KHZ 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 IZ2GOJ Contact was successful: Tue 2024-12-10 09:13:10 UTC 35 deg via VK4KHZ (***) Congratulations to the Scuola Secondaria di I Grado “F.Anzani” students, Sunita, mentor IZ2GOJ, and telebridge station VK4KHZ! (***) Watch for Livestream at https://www.youtube.com/live/jU7bSfGfwfI?si=OTL5NoqViOGKZgtI Hillsboro Charter Academy, Purcellville, VA, direct via KQ4MAM 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 AA6TB Contact is go for: Wed 2024-12-11 18:51:41 UTC 45 deg Watch for Livestream at https://www.youtube.com/watch?v=oqKx6ytN96k and also https://live.ariss.org/ Zespół Szkół Łączności, Warszawa, Poland, direct via SP5KAB 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 Nick Hague KG5TMV The ARISS mentor is SP3QFE Contact is go for: Mon 2024-12-16 08:28:18 UTC 77 deg Sally Ride Elementary School, Orlando, Florida, direct via K1AA 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 AA4KN Contact is go for: Tue 2024-12-17 18:42:56 UTC 36 deg Many times a school may make a last minute decision to do a Livestream or run into a last minute glitch requiring a change of the URL but we at ARISS may not get the URL in time for publication. You can always check https://live.ariss.org/ to see if a school is Livestreaming. 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 2024-12-10 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 2024-12-10 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 proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS has closed for contacts to be scheduled for July 1, 2025 – December 31, 2025. 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 255 Francesco IKØWGF with 154 Satoshi 7M3TJZ with 154 Gaston ON4WF with 124 Steve VE3TBD with 124 Peter IN3GHZ with 122 **************************************************************************** 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 1806. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1697. (***) 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 **************************************************************************** Boeing CFT on orbit Sunita Williams KD5PLB Barry Wilmore SpaceX Crew-9 on orbit Nick Hague KG5TMV Alexander Gorbunov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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