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.

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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-Assembli...]https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Students-Assembling-Tevel-Satellite.jpg 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-Through...]https://www.amsat.org/wordpress/wp-content/uploads/2024/07/TEVEL-One-Through-Eight-Satellites.jpg 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.orghttps://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_Using_GoPro_Camera.jpg 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_Diagram.jpg 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 Agencyhttps://www.esa.int/ and Garef Aérospatialhttps://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_58...] 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-Sta...]https://www.amsat.org/wordpress/wp-content/uploads/2024/07/SpaceX-United-States-Deorbit-Vehicle.jpg 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-Cap...]https://www.amsat.org/wordpress/wp-content/uploads/2024/07/Crew-6-Dragon-Capsule-scaled.jpg 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.comhttps://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 @GridMasterMaphttps://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.frhttps://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 @GridMasterMaphttps://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_Jerryhttps://x.com/W8LR_Jerry on X (formerly Twitter): EM57/58 and EM67/68 are still planned for Aug 2/3. Please check hams.athttps://hams.at and @W8LR_Jerryhttps://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 @SeanKutzkohttps://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.athttps://hams.at soon. #HamRadio @AMSAThttps://x.com/AMSAT #AMSAT

Posted July 25th by @AD0HJhttps://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.athttps://hams.at.

Posted July 26th by @AMSAT-UKhttps://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.comhttp://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.athttps://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 storehttps://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-e1...]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 @AKAhamradiohttps://x.com/AKAhamradio, X.comhttps://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.comhttps://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.comhttps://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 Guardianhttps://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, SpaceNewshttps://spacenews.com/, for the above information)

________________________________

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73 and remember to help Keep Amateur Radio in Space!

This week's ANS Editor, Mitch Ahrenstorff, ADØHJ ad0hj [at] amsat.orghttps://www.amsat.org