AMSAT News Service

ANS-004
January 4, 2026

In this edition:

* AMSAT Membership Now Includes “Getting Started with Amateur Satellites” Guide
* Soyuz Rideshare Launch Deploys Several New Amateur Radio Satellites in Orbit
* HDMI Converter Installed on ISS HamTV System, Expanding Video Capabilities
* CubeSat Developers Workshop 2026 Opens Call for Abstract Submissions
* GridMasterMap Satellite Top 100 Rovers January 2026 Rankings
* Changes to AMSAT-NA TLE Distribution for January 2, 2026
* ARISS News
* 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/

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AMSAT Membership Now Includes “Getting Started with Amateur Satellites” Guide

AMSAT is offering a limited-time promotion for new and renewing members that includes a free digital copy of Getting Started with Amateur Satellites. The promotion is being offered as AMSAT begins the 2026 membership year.

Anyone who joins or renews their AMSAT membership during the promotional period will receive a download link for the latest edition of Getting Started with Amateur Satellites in their membership confirmation email. The guide is designed to help radio amateurs understand the fundamentals of satellite operation and serves as a practical reference for both newcomers and operators returning to the hobby. Additional information about AMSAT membership is available at https://launch.amsat.org.

In addition to this limited-time promotion, AMSAT membership includes a subscription to The AMSAT Journal, access to archived issues, discounts on selected items in the AMSAT online store, and opportunities to participate in AMSAT elections, committees, awards programs, and other AMSAT activities and programs. Members may also access archived proceedings from past AMSAT Space Symposiums through the AMSAT member portal.

Beyond these tangible benefits, AMSAT membership supports the development, launch, and operation of amateur radio satellites, along with education and outreach efforts. Joining AMSAT is not just about individual benefits — it is about being part of the community that builds and operates amateur satellites for radio amateurs worldwide. As AMSAT looks ahead to 2026, the promotion helps launch another year of growth and opportunity for amateur radio in space.

[ANS thanks Drew Glasbrenner, KO4MA, AMSAT President and BoD member, for the above information]

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Soyuz Rideshare Launch Deploys Several New Amateur Radio Satellites in Orbit

A Soyuz-2.1b launch vehicle with a Fregat upper stage launched successfully on December 28 at 13:18 UTC (8:18 a.m. EST), deploying a total of 52 satellites into orbit. The mission was operated by Roscosmos and lifted off from the Vostochny Cosmodrome in eastern Siberia. The primary payloads were two Aist-2T Earth-observation satellites.

Among the secondary payloads were at least eight satellites using amateur radio frequencies, including several that received coordination through the International Amateur Radio Union. Initial on-orbit checkout and commissioning activities are underway, with beacon reports and operational activity continuing to be reported.

QMR-KWT-2 (Moon of Kuwait) is a 1U CubeSat carrying an amateur radio mission led by Oleg Razin, R3AOR, in cooperation with the Moscow Technical University of Communication and Informatics. The satellite features an FM amateur radio transponder intended to encourage participation by students and new operators, along with a miniature camera capable of transmitting SSTV images. The mission operates under IARU coordination, with a downlink on 436.950 MHz and a transponder uplink on 145.920 MHz.

Lobachevsky (RS83S) is a 16U CubeSat developed by the National Research State University of Nizhny Novgorod as part of Russia’s Space-π educational program. The spacecraft carries an amateur radio digital repeater supporting message exchange between radio amateurs worldwide, along with imaging payloads transmitting SSDV and SSTV pictures. IARU-coordinated frequencies include a repeater uplink on 435.500 MHz, repeater downlink on 145.910 MHz, a telemetry and image downlink on 436.320 MHz, and an experimental X-band downlink on 10.470 GHz.

SAKHACUBE-CHOLBON (RS-18S) is a 1U CubeSat developed by the Sakha Science Academy as the first satellite of the Republic of Sakha (Yakutia). The spacecraft uses a single UHF amateur radio transceiver for telemetry, command, and educational payload data, including digital transmissions and SSTV images. The satellite operates with IARU coordination, including a downlink on 437.350 MHz.

Several additional satellites on the mission are reported to use amateur radio frequencies without IARU coordination, including Polytech Universe-6, Scorpion, Luca-1, and Galapagos-UTE. In addition to the amateur-frequency spacecraft, the mission also deployed three Iranian Earth-observation satellites — Paya, Zafar-2, and Kowsar — intended for monitoring agriculture, mapping natural resources, and studying environmental conditions.

Follow ongoing tracking, decoding activity, and discussion of this launch in the LibreSpace community at: https://community.libre.space/t/soyuz-2-1b-fregat-vostochny-launch-2025-12-28-1305-utc/14152/21

[ANS thanks AMSAT-Francophone, the IARU, and the LibreSpace community for the above information]

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HDMI Converter Installed on ISS HamTV System, Expanding Video Capabilities

Amateur Television operations aboard the International Space Station received a significant upgrade on December 22, when an HDMI converter was installed on the ARISS HamTV system. The new hardware expands video capabilities for HamTV and supports the use of a broader range of onboard cameras during future educational contacts. The installation was performed during scheduled maintenance activities by NASA astronaut Chris Williams, KJ5GEW. ARISS reported that the HDMI converter can generate a video test signal when the system is in standby mode, providing a clear visual indication of system readiness and video-path functionality.

The December upgrade builds on HamTV’s return to operation earlier in the year. The HamTV unit was installed aboard the ISS on July 29 by astronaut Jonny Kim, KJ5HKP, after several years offline for repairs. Following installation, ARISS confirmed acquisition of signal reports from amateur stations as the system began transmitting a carrier on 2395 MHz, with continued testing through August confirming stable carrier operation.

Those efforts led to successful video use during an educational contact on October 18 with scouts in the United Kingdom. During that event, Jonny Kim, KJ5HKP, answered student questions while appearing live on station via HamTV. Pre-contact testing included tone and color-bar transmissions, followed by a successful live video downlink from the ISS.

In the days following the December 22 maintenance activity, amateur observers again reported reception of color-bar test signals, confirming proper operation of the updated video chain. On December 23, amateur operator Scott Chapman, K4KDR, reported successful reception of HamTV test video during an ISS pass over North America, documenting decoding of a video test pattern using a one-meter S-band dish.

HamTV uses DVB-S digital amateur television transmitted on 2395 MHz, and reception typically requires a 2.4-GHz-capable antenna, a low-noise amplifier, and a compatible DVB-S receiver or software-defined radio. With the HDMI converter installed and testing completed, ARISS has indicated that further HamTV activity is expected during educational contacts in 2026.

For those interested in receiving HamTV, Scott Chapman, K4KDR, has published a community guide describing one method of decoding and recording HamTV test video using SatDump and VLC Media Player: https://www.qsl.net/k/k4kdr/how-to/HamTV_SatDump_VLC.pdf. Additional technical background, reception reports, and ground-station information are maintained by the British Amateur Television Club (BATC): https://wiki.batc.org.uk/HAMTV_from_the_ISS.

[ANS thanks ARISS, the British Amateur Television Club, and Scott Chapman, K4KDR for the above information]

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CubeSat Developers Workshop 2026 Opens Call for Abstract Submissions

The CubeSat Developers Workshop (CDW) team has opened the call for abstracts for the 2026 workshop, inviting members of the CubeSat and small-satellite community to submit presentations covering mission concepts, technical developments, and operational results.

The CubeSat Developers Workshop is an annual three-day global small-satellite conference hosted at California Polytechnic State University in San Luis Obispo, California. The event brings together students, researchers, educators, and industry professionals from around the world to share experience and lessons learned across the CubeSat mission lifecycle. In recent years, the workshop has attracted more than 600 participants representing over 50 countries.

The 2026 workshop will include both oral presentations and poster sessions. Poster sessions provide an interactive forum well suited to early-stage mission concepts, subsystem development, and student projects, while oral presentations focus on more mature missions, flight results, and in-depth technical analyses.

Abstracts are welcomed on topics spanning the full CubeSat mission lifecycle, including mission design, hardware and software development, integration and testing, operations, and on-orbit performance. Submissions that emphasize lessons learned, innovative approaches, or practical operational experience are particularly encouraged.

The CubeSat Developers Workshop 2026 will take place April 14–16, 2026, in San Luis Obispo, California. Abstract submissions must be received no later than 11:59 p.m. Pacific Time on Monday, January 5, 2026. Participant registration is now open, with early-bird pricing available through February 1, 2026. Professional early-bird registration begins at $200 for a one-day pass or $500 for a three-day pass, while student pricing starts at $125 for one day or $225 for three days.

Additional information on abstract submission, registration, sponsorship, and exhibitor opportunities is available on the workshop website: https://www.cubesatdw.org.

[ANS thanks the CubeSat Developers Workshop for the above information]

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GridMasterMap Satellite Top 100 Rovers January 2026 Rankings

The January 2026 rankings for the Top 100 Rovers (Mixed LEO/MEO/GEO) in satellite operations, as determined by @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 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: 2026-01-01

1	ND9M	26	KX9X	51	WD5GRW	76	N8RO
2	NJ7H	27	KG5CCI	52	KE0PBR	77	SP5XSD
3	UT1FG	28	DJ8MS	53	XE3DX	78	N6UTC
4	JA9KRO	29	N5BO	54	W7WGC	79	N4UFO
5	N5UC	30	ON4AUC	55	PR8KW	80	VE7PTN
6	F5VMJ	31	K8BL	56	JK2XXK	81	BA8AFK
7	DL6AP	32	KE4AL	57	LU4JVE	82	PT2AP
8	DP0POL	33	KB5FHK	58	EB1AO	83	VE1VOX
9	WI7P	34	AC0RA	59	XE1ET	84	AA8CH
10	K5ZM	35	PA3GAN	60	EA4NF	85	KB2YSI
11	OE3SEU	36	KI0KB	61	N6DNM	86	KI7UXT
12	WY7AA	37	JO2ASQ	62	W8LR	87	AF5CC
13	LU5ILA	38	F4BKV	63	W1AW	88	KJ7NDY
14	N6UA	39	KI7UNJ	64	KI7QEK	89	BI1MHK
15	HA3FOK	40	VA3VGR	65	SM3NRY	90	PT9BM
16	W5PFG	41	VE3HLS	66	KE9AJ	91	FG8OJ
17	AK8CW	42	BG7QIW	67	F4DXV	92	BG5CZD
18	N9IP	43	LA9XGA	68	VE1CWJ	93	YU0W
19	AD0DX	44	HJ5LVR	69	AA5PK	94	PU4CEB
20	AD0HJ	45	VK5DG	70	AD7DB	95	W8MTB
21	N4AKV	46	N7AGF	71	KM4LAO	96	N4DCW
22	DL2GRC	47	DF2ET	72	M1DDD	97	WA9JBQ
23	ND0C	48	K7TAB	73	HB9GWJ	98	PS8BR
24	WD9EWK	49	JL3RNZ	74	VA7LM	99	VE3GOP
25	BA1PK	50	KE0WPA	75	DL4EA	100	JM1CAX

[ANS thanks @GridMasterMap for the above information]

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AMSAT Remove Before Flight Key Tags Now Available
Yes, These are the Real Thing!

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Changes to AMSAT TLE Distribution for January 2, 2026

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/.

This week there are no additions or deletions to the AMSAT TLE distribution.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information]

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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.

Scheduled Contacts

+ Recently Completed

No International Space Station school contacts were completed during this reporting period, as many schools were closed for the holiday break.

+ Upcoming Contacts

No upcoming school contacts are currently scheduled; scheduling will resume once schools return from the holidays.

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.

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 remains configured in the Columbus Module (145.990 MHz up {PL 67} & 437.800 MHz down). If a crewmember decides to pick up the microphone and turn up the volume, you may hear them on the air—so keep listening, as you never know when activity might occur.

The service module IORS is not currently in APRS configuration and is being used only for voice contacts at this time. HamTV in the Columbus Module is configured for scheduled digital amateur television operations on 2395.00 MHz.

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]

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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

None currently scheduled.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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AMSAT News Service

ANS-355
December 21, 2025

In this edition:

• W2RS Memorial AMSAT CW Activity Day to be Held January 1, 2026
• New Satellite Tracking Application Released
• How University Space Clubs Prepare for Their First Satellite Project
• Changes to AMSAT TLE Distribution for December 19, 2025
• ARISS News
• 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/

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W2RS Memorial AMSAT CW Activity Day to be Held January 1, 2026

In March 2022, the AMSAT community lost one of our pioneers when Ray Soifer, W2RS, became a silent key. In addition to his numerous contributions to AMSAT and the worldwide amateur satellite community, Ray was also the long time organizer of AMSAT’s CW Activity Day – previously AMSAT Straight Key Night – held in conjunction with the ARRL’s event on New Year’s Day. In recognition of Ray’s long time service to AMSAT and his keen interest in CW operating via satellite, AMSAT’s CW Activity Day is now known as the W2RS Memorial AMSAT CW Activity Day.

The rules are simple – operate CW through any amateur satellite between 0000 UTC and 2359 UTC on January 1, 2026. Straight keys and bugs are encouraged, but not required. Logs are not required, but operators are encouraged to submit a report of their activity to the AMSAT-BB. Photos and video clips of activity are also encouraged – post them on X or other social media networks and tag @AMSAT or #amsat.

Remember to use the minimum power required for communication as constant carrier modes, including CW, can disrupt transponder operation for other users.

[ANS thanks AMSAT for the above information]

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New Satellite Tracking Application Released

Bob McGwier, N4HY, has announced the release of a new satellite tracking application entitled Visible Ephemeris.

Visible Ephemeris is a modern, spiritual successor to Quiktrak (1986), re-engineered for the Raspberry Pi 5 and modern silicon. It is capable of propagating 13,000+ satellites in real-time with sub-second updates while maintaining <5% CPU utilization.

Visible Ephemeris is high performance physics based program using Kelso/Villado SGP4, to track satellites (all in the Celestrak TLE). It uses McGwier’s implementation of Pedro Escobal AOS/LOS search but rewritten for altitude and not Eccentric Anomaly. The code is designed for and intended for Raspberry Pi and displays graphics components using Web UI.

It features a Hybrid Decoupled Architecture where the UI, Orbital Mechanics, and Network Services run on independent threads, ensuring the interface never freezes—even during heavy calculation loads.

Visible Ephemeris has been released under the MIT license and further details can be found at https://github.com/n4hy/VisibleEphemerisCPP.git

[ANS thanks Bob McGwier, N4HY, for the above information]

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How University Space Clubs Prepare for Their First Satellite Project

The spark of curiosity and ambition often starts in a university lab: a handful of students gather, sketch rough diagrams on whiteboards, debate orbital mechanics at midnight, and dream of seeing their own hardware flying above Earth. For many of these aspiring engineers and scientists, involvement with a student satellite club represents more than just coursework: it’s their first real shot at participating in space exploration. These clubs, across universities worldwide, transform ideas into hardware and enthusiasm into the kind of rigorous planning it takes to actually launch.

From Idea to Kickoff: Forming the Team And Setting Goals

At the outset, a group of students (often from different disciplines like mechanical engineering, computer science, electronics, or physics) comes together with a shared interest in building a satellite. For many, this marks the beginning of a university satellite project rather than just a class exercise, and some teams even use a dedicated research assistant to streamline early planning and gather technical insights. The club defines its mission: maybe it’s Earth observation, environmental sensing, communications testing, or a technology demonstration.

The first practical step is to assemble a core team: subsystem leads for avionics, communications, structure, power, payload, and operations. This division, common in professional aerospace teams, helps students learn early how complex spacecraft are divided into interdependent systems. Some clubs also look for faculty advisors or collaborators from industry to guide them through unfamiliar territory.

Once the pieces are in place, the club sets goals and schedules. Will this be a CubeSat, a smaller PocketQube, or a microsatellite? What payload makes sense given the budget and skills available? How will ground station communications work? Early decisions help steer the entire project and establish realistic expectations about scope, cost, and timeline.

The Importance of Design, Simulation, And Prototyping

Design is where theory meets reality. Students work on 3D models of satellite structure, layout of solar panels, shielding, antennas, and internal boards. They simulate thermal, electrical, and mechanical stresses to ensure their satellite can survive launch vibrations and the harsh environment of space. Many clubs employ computer-aided design (CAD) tools and simulation software to anticipate potential issues.

Prototyping follows design. Groups build mock-ups or engineering models — sometimes out of inexpensive materials — to test fits, deployment mechanics, and subsystem integration. This hands-on phase reveals assembly challenges that might not show up on the screen. It also builds critical skills: soldering, wiring, 3D printing parts, basic clean-room assembly practices, and rigorous testing.

Building Support Networks: Mentors, Funding, Partnerships

A student group rarely operates in isolation. Universities might provide lab space, clean rooms, testing facilities, and occasionally small budgets, but often, additional external support is crucial. Clubs frequently reach out to faculty in engineering, physics, or computer science departments for mentorship. Some clubs also form partnerships with research institutions, local aerospace companies, amateur radio communities, or national space agencies to gain access to more advanced equipment.

Ground-Station Planning And Mission Operations Prep

One often-overlooked but essential component is the ground segment. A successful satellite needs to reliably communicate with Earth: upload commands, receive telemetry, downlink data. For many student teams, building or adapting a ground station is part of the learning curve.

On the operations side, the team writes procedures and schedules: when to turn on instruments, how to run health checks, how to handle contingencies like partial failures or unexpected behavior in orbit. This mission-operations mindset trains students in the discipline of space mission management.

Preparing for Launch: Testing, Regulatory Paperwork, And Final Review

As the launch nears, the club shifts into full production mode. All subsystems must be assembled, tested, and integrated. Thermal-vacuum tests, vibration tests, and electromagnetic interference tests help ensure the satellite will survive the rigors of launch and space. Students often run repeated functional tests: power cycling, communications tests, antenna deployment, battery charging, and simulating real in-orbit operations.

At the same time, they must deal with paperwork: launch licensing, radio-frequency licensing, compliance with local and international space regulations, and environmental reviews. Some universities facilitate this, but others require the student club to navigate the regulatory process itself, a valuable learning experience in project management.

Once everything checks out, the team must coordinate with a launch provider, reserve a ride-share slot or secure a deployment contract, define orbit parameters, and prepare payload manifests.

The First Launch, And What Comes Next

Reaching orbit is a major milestone, but for student-built satellites, it’s only the beginning. First missions are typically demonstration or technology-testing. Once the satellite is in orbit, the ground station begins routine operations: receiving telemetry, validating system health, operating payloads, and collecting data.

Why do these clubs matter? Beyond the immediate technical achievement, they cultivate a culture of innovation, hands-on learning, and collaboration. They lower the barrier to entry into space for students who might never have had the opportunity otherwise. Many graduates of student satellite clubs go on to careers in aerospace, research, or related industries, carrying with them practical skills in design, systems engineering, hardware testing, and project management.

As university clubs gain experience and build reputations, they do more than just offer small satellite development for students; they also help governments and space agencies recognize the value of small satellites: low-cost experimentation, rapid iteration, educational outreach, and workforce development.

[ANS thanks Orbital Today for the above information. Read the full article at https://orbitaltoday.com/2025/12/19/how-university-space-clubs-prepare-for-their-first-satellite-project/]

Last Chance to Join The 2025 AMSAT President’s Club
Celebrating the 40th Anniversary of Amateur Radio on Human Spaceflight
Help Support GOLF and Fox Plus.
Join the AMSAT President’s Club today!

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Changes to AMSAT TLE Distribution for December 19, 2025

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/.

This week there are no changes to the AMSAT TLE Distributions.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information]

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Need new satellite antennas?
Purchase an M2 LEO-Pack from the AMSAT Store!

When you purchase through AMSAT, a portion of the proceeds goes towards Keeping Amateur Radio in Space.

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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.

Scheduled Contacts

No contacts currently scheduled

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.

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]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!
25% of the purchase price of each product goes towards Keeping Amateur Radio in Space

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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

No events currently scheduled

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information]

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Satellite Shorts from All Over

+ AO-123’s FM transponder has been back in operation periodically over the past week. The uplink for the FM transponder is 145.850 MHz (67.0 Hz CTCSS) and the downlink is 435.400 MHz. (Thanks to contributors to the AMSAT Status Page).

+ The 90th AMSAT Rover Award has been issued to HJ1M. For more information on AMSAT awards, visit https://www.amsat.org/awards-2/ (Thanks to Bruce Paige, KK5DO, AMSAT Director of Contests and Awards).

+ On December 18, 2025, President Trump signed an Executive Order entitled “Ensuring American Space Superiority.” In this order, the President announced the policy of the U.S. Government is to return Americans to the Moon by 2028 through the Artemis Program and to establish the initial elements of a permanent lunar outpost by 2030 “to ensure a sustained American presence in space and enable the next steps in Mars exploration.

+ On December 17, 2025, the U. S. Senate confirmed the nomination of Jared Isaacman to be Administrator of NASA by a vote of 67-30. Issacman took office as the NASA Administrator the following day.

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Join AMSAT today at https://launch.amsat.org/

In addition to regular membership, AMSAT offers membership to:

• Societies (a recognized group, clubs or organization).
• Students are eligible for FREE membership up to age 25.
• 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] arrl.net

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002

AMSAT News Service

ANS-348
December 14, 2025

In this edition:

* Soyuz Crew Lands Ending Eight-Month Space Research Journey
* Satellites Experience “Orbital Summer” And “Orbital Winter”
* CCSDS Development Competition Open to European Hams
* VUCC Satellite Standing December 2025
* DXCC Satellite Standing for December 2025
* A Dying Satellite May Photograph Asteroid Apophis in 2029
* Changes to AMSAT-NA TLE Distribution
* Boeing’s Next Starliner Flight Will Carry Cargo Only
* ARISS News
* 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/

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Soyuz Crew Lands Ending Eight-Month Space Research Journey

The crew of Soyuz MS-27, including NASA astronaut Jonny Kim, KJ5HKP, along with Russian Cosmonauts Sergey Ryzhikov and Alexey Zubritsky, returned safely to Earth after living aboard the International Space Station (ISS) in weightlessness for 245 days. The return marked the end of ISS Expedition 73.

Lieutenant Commander (LCDR, U.S. Navy) Jonny Kim was born and raised in Los Angeles, California to Korean-American immigrants. He enlisted in the Navy as a Seaman recruit after graduating high school in 2002. After completion of Hospital Corpsman “A” school training, he reported to Basic Underwater Demolition/SEAL (BUD/S) training in Coronado, CA. After completing his training at Naval Special Warfare, Kim reported to the John F. Kennedy Special Warfare Center and School in Fort Liberty, NC for the Special Operations Combat Medic Course. He was assigned as a Special Warfare Operator to SEAL Team THREE in San Diego, CA and obtained various qualifications including Military Freefall Parachutist, Advanced SCUBA, Combatant Diver (closed circuit rebreather), Naval Special Warfare Special Reconnaissance Scout and Sniper, and Advanced Special Operations Techniques. As a Navy SEAL he completed more than 100 combat operations.

In 2012, Petty Officer First Class Kim was commissioned as a naval officer through the Navy’s enlisted-to-officer commissioning program, Seaman to Admiral-21, following graduation from the University of San Diego. Kim obtained his medical degree from Harvard Medical School and completed his internship with the Harvard Affiliated Emergency Medicine Residency at Massachusetts General Hospital and Brigham and Women’s Hospital in Boston, MA.

Kim is an Aeromedical Dual Designated (AMDD) Naval Aviator and Flight Surgeon, he completed his primary flight training at Naval Air Station (NAS) Corpus Christi, TX, helicopter advanced flight training at NAS Whiting Field in Milton, FL, and the Naval Flight Surgeon course at the Naval Aerospace Medical Institute at NAS Pensacola, FL.

Selected by NASA in 2017, Kim completed two years of training as an Astronaut Candidate. Training included technical and operational instruction in International Space Station systems, Extravehicular Activities (EVA) Operations, T-38 flight training, robotics, physiological training, expeditionary training, field geology, water and wilderness survival training, and Russian language proficiency training. In 2020, Kim began his support of International Space Station operations as a Capsule Communicator (CapCom) in Mission Control Center Houston and the Artemis program under the astronaut Exploration branch. He served as the International Space Station’s Increment Lead for Expedition 65 in 2021.

As part of his astronaut training, Kim earned his Technician Class amateur radio license in July of 2024.

Soyuz MS-27 crew members (from left) NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky
pose for a pre-flight portrait at the Gagarin Cosmonaut Training Center in Russia. (Credit: GCTC)

Kim launched to the International Space Station on April 8, 2025, as a flight engineer on the Soyuz MS-27 spacecraft. He spent eight months aboard the station as an Expedition 72/73 flight engineer, conducting science experiments and maintaining the space station. During the science expedition, Kim orbited the Earth 3,920 times and traveling nearly 104 million miles. He saw the arrival of nine visiting spacecraft and the departure of six during his time in orbit.

This was Kim’s first spaceflight, where he served as flight engineer for Expedition 72 and 73. This also was Zubritsky’s first trip to the space station. Ryzhikov now has logged a total of 603 days in space during three trips to the orbital complex, ranking him 13th all time.

The three crew members were flown by helicopter to Karaganda, Kazakhstan, where recovery teams are based. After medical exams, Kim boarded a NASA aircraft and returned to Houston to spend Christmas with his wife and their three children.

Expedition 74 is now underway with veteran NASA astronaut Mike Fincke, KE5AIT, as commander leading six flight engineers including NASA astronauts Zena Cardman, KJ5CMN, and Chris Williams, KJ5GEW, JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui, KG5BPH, and Roscosmos cosmonauts Oleg Platonov, Sergey Kud-Sverchkov and Sergei Mikaev.

[ANS thanks NASA for the above information.]

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Help Support GOLF and FoxPlus.

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CCSDS Development Competition Open to European Hams

The European Space Agency (ESA) is presenting a pilot programme on behalf of The Consultative Committee for Space Data Systems (CCSDS) and is pleased to announce a new outreach initiative aimed at strengthening engagement with the European amateur satellite and academic communities. This initiative supports the wider objective of promoting the adoption and practical application of CCSDS space communication standards.

CCSDS invites European amateur satellite operators, students, educators, and academic researchers to participate and to help advance open, interoperable space communication technologies.

ESA, in partnership with Goonhilly Earth Station, CCSDS, AMSAT-UK, and AMSAT-DL, are launching a competition to develop high-quality reference implementations of selected CCSDS protocols.

This competition is sponsored by the European Space Agency (ESA).

About the Competition

This programme invites participants to:

Develop open, standards-compliant reference implementations of CCSDS protocols
Contribute to a shared technical resource for amateur satellite operators, universities, and research groups
Gain recognition within both the CCSDS community and the broader space communications field

An in-person hackathon at Goonhilly Earth Station will be available to interested participants, providing a unique environment for collaboration, expert guidance, and accelerated development.

Goonhilly Earth Station is coordinating the competition and will not assert any ownership over Hackathon/Competition outputs.

Prize

Winners of the competition will receive an invitation to attend a CCSDS conference in the United States, where they will present their results to the international CCSDS community.

Protocols Featured in the Competition

These are the outlines of the two CCSDS protocols selected for this competition:

LunaNet Signal-In-Space Recommended Standard – Augmented Forward Signal (LSIS – AFS)
The LSIS–AFS standard defines how lunar orbiters or surface systems broadcast a unified navigation and timing signal to support future missions on and around the Moon. It provides a framework for creating an enhanced, interoperable “forward signal” that spacecraft, rovers, and astronauts can use for more accurate positioning, timing, and situational awareness.

Space Communications Session Control (CCSDS 235.1)

The CCSDS 235.1 standard defines how space missions establish, manage, and conclude communication sessions between spacecraft and ground systems. It provides a common framework that ensures reliable coordination when exchanging data, sending commands, and transitioning between communication states.

Participants may choose either to develop a functional concept or prototype that demonstrates how the LSIS–AFS signal could be designed, transmitted, interpreted, or applied to support future lunar missions, or to create a practical, interoperable reference implementation of Space Communications Session Control aligned with the CCSDS 235.1 standard.

A Long-Term Vision: Toward a Cislunar Amateur Radio Payload

CCSDS is pleased to highlight a longer-term aspiration linked to this initiative. In close cooperation with its partners—particularly ESA, which is proposing a future cislunar amateur radio payload—CCSDS intends to support the preparation of the most successful protocol implementations for potential consideration for flight.

This offers an exceptional opportunity for community-developed CCSDS-compliant software to be demonstrated in a deep-space operational environment.

This prospective mission is subject to funding and programme approval.

Contact and Expressions of Interest

For enquiries or to express interest in participating, please contact: esa-competition@amsat-uk.org

Additional details—including eligibility criteria, protocol specifications, submission requirements, evaluation processes, and timelines—will be released soon.

[ANS thanks the AMSAT-UK for the above information.]

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VUCC Satellite Standing December 2025

————————————————————
VUCC Satellite Award/Endorsement Change Summary for
November 01, 2025 to November 30, 2025.
————————————————————

Call	Nov	Dec
E70A	840	901
A65BR	676	701
F6GLJ	609	701
EA3TA	607	681
AD2DD	604	650
HP2VX	527	543
N6PAZ	495	500
PY2HZ	New	427
OH3DP	300	352
BI1QGX	102	350
W6IA	278	302
PY2YJ	210	266
DH0GSU	170	204
N9HF	New	185
KT8O	153	175
WB5TX	151	156
BI1NWO	New	126
DF3VG	New	123

Congratulations to the new VUCC Satellite holders.

PY2HZ
N9HF
BI1NWO
DF3VG

N0HF is first VUCC Satellite holder from EL99
PY2HZ is first VUCC Satellite holder from GG48

[ANS thanks Jon Goering, N7AZ for the above information.]

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DXCC Satellite Standings for December, 2025

————————————————————
DXCC Satellite Award/Endorsement Change Summary for
November 01, 2025 to December 01, 2025.
————————————————————

Call	Nov	Dec
HB9RYZ	166	169
IK4CIE	146	157
G8BCG	135	154
PA7RA	148	154
DL9RAN	125	150
IU0LFQ	121	150
IK1GPG	100	144
DL8GAM	125	136
LA0FA	128	133
ON6AA	114	131
W2GDJ	122	123
LA7XK	110	118
JK2XXK	New	106
I1YDT	New	100
YB5QZ	New	100

Congratulations to the new DXCC Satellite holders.
JK2XXK
I1YDT
YB5QZ

YB5QZ is first DXCC Satellite holder from Indonesia and OJ00

[ANS thanks Jon Goering, N7AZ, for the above information.]

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A Dying Satellite May Photograph Asteroid Apophis in 2029

An Australian company wants to join efforts to study a rare space event, conducting its own flyby of the asteroid Apophis when it makes its close approach to Earth in 2029.

Sydney-based HEO Robotics, a provider of commercial satellite-to-satellite imagery, wants to add to the international missions already planning to get up close to the 1,115-foot-wide (340 meters) asteroid Apophis as it zooms by Earth in April 2029 by buying a satellite near the end of its life up in geostationary orbit and use its remaining fuel.

An illustration of the “God of Destruction” asteroid Apophis as it makes a close approach to Earth in April 2029
(Image credit: Jonathan Männel / with Eyes on the Solar System, NASA/JPL)

Satellites in the geostationary belt (GEO) orbit 22,236 miles (35,786 kilometers) above the equator. Spacecraft nearing the end of their lives use their remaining fuel to head into a so-called graveyard orbit above GEO to take themselves out of the way of the operational satellites. HEO aims to buy a satellite near the end of its mission lifetime and, using a little more fuel than needed for the graveyard trip, make a close approach to Apophis, which will pass within the GEO belt when it makes its close approach to Earth on Friday, April 13, 2029.

[ANS thanks Space.com for the above information. Read the full article at https://www.space.com/astronomy/asteroids/a-dying-satellite-could-use-its-final-moments-to-photograph-the-infamous-asteroid-apophis-in-2029]

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Changes to AMSAT TLE Distribution for December 12, 2025

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:

Duchifat 3 NORAD Cat ID 44854 Decayed from orbit on or about 08 Dec 2025

The following satellites have been added to this week’s AMSAT TLE Distribution:

SilverSat NORAD Cat ID 66909 Downlink frequency: 437.175 MHz
BEE-1000 NORAD Cat ID 66650 Downlink frequency: 436.5 MHz
SNUGLITE_III DURI NORAD Cat ID 66661 Downlink frequency 436.789 MHz

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]

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Boeing’s Next Starliner Flight Will Carry Cargo Only

NASA ended months of speculation about the next flight of Boeing’s Starliner spacecraft, confirming that the vehicle will carry only cargo to the International Space Station.

NASA and Boeing are now targeting no earlier than April 2026 to fly the uncrewed Starliner-1 mission, the space agency said. Launching by next April will require completion of rigorous test, certification, and mission readiness activities, NASA added in a statement.

Starliner’s first flight in December 2019, without crew, had to be truncated after software problems plagued the vehicle. It was nearly lost shortly after launch as well as before atmospheric reentry. It did not make a planned rendezvous with the space station.

Boeing’s Starliner spacecraft is pictured docked to the Harmony module’s forward port at the International Space Station. Photo credit: NASA

The second mission, Orbital Flight Test 2, took place in May 2022. Because of problems on the previous mission, this spacecraft also flew uncrewed. This flight was more successful, reaching the space station despite some thruster issues.

NASA then spent more than two years testing Starliner on the ground before its first crewed flight in 2024, carrying NASA astronauts Butch Wilmore and Suni Williams, KD5PLB. During its approach to the space station, the Starliner spacecraft once again experienced serious thruster issues. (However, the life-and-death nature of this flight was not revealed until nearly a year later.) Starliner ultimately docked with the station, but after heated deliberations, NASA informed Boeing that the vehicle would return to Earth uncrewed.

As a result, a Dragon mission was launched later in 2024 carrying just two astronauts instead of a full complement of four. This allowed for the safe return of Wilmore and Williams in March 2025.

[ANS thanks Wired for the above information. Read the full article at https://www.wired.com/story/boeings-next-starliner-flight-will-only-be-allowed-to-carry-cargo/.]

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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.

Scheduled Contacts

Due to the holidays, no contacts are scheduled until after the first of the year.

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.]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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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.

None currently scheduled.

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information.]

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Satellite Shorts from All Over

+ Earth observation satellite TUBIN of Technical University Berlin, Germany is about to re-enter Earth’s atmosphere in the upcoming days; 16th December +/-1 day. During the orbit decay it is transmitting a telemetry beacon every 10 seconds, including position, attitude, temperatures, etc. via amateur radio UHF band at 435.950 MHz. Researchers would appreciate support of additional radio amateurs listening in and forward the received telemetry data. Further information can be found at https://community.libre.space/t/tubin-tubsat-27-re-entry/13998. As the orbit is decaying quite fast, most recent TLE’s shall be used, which are frequently updated at https://db.satnogs.org/api/tle/?format=3le&norad_cat_id=48900. Any decoded frames, audio recordings or reception reports are very welcome and can be submitted following the instructions in https://community.libre.space/t/tubin-tubsat-27-re-entry/13998. The team at TU Berlin will collect all contributions and can provide specialized TUBIN re-entry QSL cards. Full project overview at https://www.tu.berlin/en/raumfahrttechnik/research/current-projects/tubin. (ANS thanks Steffen Reinert of Technische Universität Berlin for the above information.)

+ SkyRoof, a Windows application for Hams and satellite enthusiasts by Alex Shovkoplyas, VE3NEA, was recently featured on the website of AMSAT-SM, the Swedish amateur radio satellite organization. The article by Lars Thunberg, SMØTGU, may be found at https://www.amsat.se/2025/11/22/skyroof-sdr-satellite-software/. Lars also has an interesting article on setting up a LORA telemetry groundstation at https://www.amsat.se/category/operations/. (ANS thanks AMSAT-SM for the above information.)

+ Similarly, Peter Goodhall, MM9SQL, has developed Zenith, a web-based tracking application. Information at https://zenithtracker.org/. (ANS thanks Peter Goodhall, MM9SQL, for the above information.)

+ AMSAT’s CubeSat Simulator gets excellent reviews, but a budget version is available from the Ukraine for those with access to 3-D printing and a willingness to overcome some bugs and limitations. A YouTube video reviews the project at https://www.youtube.com/watch?v=pvtHcwemfco (ANS thanks @saveitforparts for the above information.)

+ At next year’s World Radiocommunications Conference (WRC-25), governments will face a choice that goes to the heart of how we monitor our warming planet. Some regulators are wondering whether to open part of the X-band — the 8.025–8.4 GHz range used by Earth observation satellites — to 5G and 6G mobile networks. Several major telecom operators have been pushing for this move, arguing that they could use this spectrum more efficiently and pay countries handsomely for the right to do so. Eleven satellite-focused companies have formed the Remote Sensing Collective to resist the change. They’ve done this because the satellites we depend on to understand the environment depend in turn on the X-band. (ANS thanks SpaceNews for the above information. Read the full article at http://bit.ly/44pC8wX.)

+ Last month, Chinese astronauts on board the country’s Tiangong space station discovered cracks in the window of their return vehicle, the Shenzhou-20, which officials suspected were the result of a space debris strike. The spacecraft was deemed not safe enough to return its crew, prompting an orbital game of musical chairs as the China Manned Space Agency (CMSA) launched an emergency uncrewed replacement spacecraft, Shenzhou-22, to the station. Two Shenzhou-21 astronauts embarked on the mission’s first spacewalk on December 9, inspecting and photographing a damaged spacecraft window which triggered an earlier emergency launch. CMSA did not publicize results. (ANS thanks Futurism.com for the above information. Read the full article at https://futurism.com/space/chinese-astronauts-spacewalk-station-damaged-spacecraft.)

+ NASA has lost contact with the Mars Atmosphere and Volatile Evolution, or MAVEN, a spacecraft that has circled the planet for more than a decade, collecting science data and serving as a key communications relay. (ANS thanks SpaceNews for the above information.)

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Join AMSAT today at https://launch.amsat.org/

In addition to regular membership, AMSAT offers membership to:

• Societies (a recognized group, clubs or organization).
• Students are eligible for FREE membership up to age 25.
• 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,

Mark Johns, KØJM
mjohns [at] amsat.org

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002
AMSAT is a registered trademark of the Radio Amateur Satellite Corporation.

AMSAT News Service

ANS-341
December 7, 2025

In this edition:

* KSLV-II Mission Deploys 13 Satellites, Including New Amateur Radio Payloads
* ISS Deployment Added Five New Education-Focused Amateur Radio Missions
* ARISS Moves Series 30 SSTV Transmissions to RS-38S After Equipment Issue
* GridMasterMap Satellite Top 100 Rovers December 2025 Rankings
* Changes to AMSAT-NA TLE Distribution for December 5, 2025
* ARISS News
* 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/

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KSLV-II Mission Deploys 13 Satellites, Including New Amateur Radio Payloads

South Korea recorded another significant achievement in its growing domestic space program with the successful nighttime launch of the Korea Space Launch Vehicle-II (KSLV-II), also known as Nuri, from the Naro Space Center in Goheung, South Korea. Liftoff occurred at 16:13 UTC on 26 November 2025 after a brief delay caused by an abnormal pressure-sensor signal in the rocket’s umbilical system. After the anomaly was resolved, Nuri ascended smoothly and became South Korea’s first orbital launch conducted during nighttime operations.

The vehicle performed nominally throughout ascent, completing stage separations on schedule and surpassing the 500 km mark roughly seven minutes after liftoff. Orbit insertion occurred approximately twelve minutes into the flight, followed one minute later by the deployment of CAS500-3, a 500-kilogram scientific satellite designed for highly light-sensitive Earth-observation missions. Korea Aerospace Administration (KASA) officials confirmed multiple ground-station contacts with CAS500-3 during its first day on orbit, including passes over the King Sejong Station in Antarctica.

Following the primary payload, Nuri deployed twelve CubeSats, nine of which operate in the amateur UHF bands. Of these, three satellites were fully IARU-coordinated. The twin SNUGLITE-III CubeSats—HANA (436.460 MHz) and DURI (436.788 MHz)—developed by Seoul National University, each carry a 9600-bps GMSK AX.25 digipeater, UHF beacons, and an S-band imaging payload at 2405.000 MHz. These spacecraft support amateur-radio training, GPS-RO technology demonstrations, and formation-flying experiments. The third coordinated payload, SPIRONE (436.650 MHz / 2425.100 MHz) from Sejong University, combines an environmental mission to detect marine plastic with a GMSK beacon and an S-band transponder intended for amateur-radio experimentation.

Six additional CubeSats on the mission also used amateur-band downlinks but were not coordinated through the IARU. These include JACK-003, JACK-004 (both 436.300 MHz), BEE-1000 (436.500 MHz), PERSAT01 (437.125 MHz), K-HERO (437.165 MHz), and INHA-RoSAT (437.665 MHz). While uncoordinated, they remain of interest to amateur-radio satellite observers, particularly during early beacon activity and commissioning efforts as teams work to establish first contact.

This launch also reflects South Korea’s broader strategy of strengthening its commercial aerospace ecosystem. For the first time, primary launch-operation responsibility was handled by Hanwha Aerospace, marking a transition toward greater private-sector involvement in national space access. Despite a two-and-a-half-year gap since the previous Nuri flight, Hanwha and its partners maintained launch readiness and executed the mission successfully—an encouraging sign for Korea’s long-term space-industry development.

KASA plans at least two additional Nuri launches through 2027, with the goal of supporting annual flights thereafter and ultimately developing a next-generation booster capable of heavier payloads and deep-space missions. For the amateur-satellite community worldwide, the KSLV-II program’s demonstrated ability to deploy large numbers of small spacecraft—including coordinated amateur payloads—is a promising development, expanding future rideshare opportunities and adding new signals to monitor across UHF and S-band.

Read the full article at: https://www.koreaherald.com/article/10624440 and Libre Space discussion at: https://community.libre.space/t/kslv-2-cas500-3-mission-2025-11-26-16-13-utc/14043

[ANS thanks Kan Hyeong-woo, The Korea Herald, and the Libre Space community, for the above information]

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ISS Deployment Added Five New Education-Focused Amateur Radio Missions

Seven satellites were deployed from the International Space Station on December 2, 2025, with release times spanning 08:10 UTC to 09:50 UTC in three batches using the Voyager Space NanoRacks CubeSat Deployer (NRCSD) system. Five of the deployed spacecraft—SilverSat, RHOK-SAT, Content-Cube, EagleSat-2, and Foras Promineo—operate on amateur radio frequencies and represent a broad collection of university, student-led, and educational missions. SatNOGS stations scheduled more than 700 observations during the first 24 hours as the satellites drifted away from the ISS to form their initial orbits, requiring careful Doppler evaluation and coordinated tracking during the early identification phase.

The first release at 08:10 UTC deployed the 6U DUPLEX satellite, which does not carry an amateur-radio payload. A second deployment window at 08:20 UTC released four 1U spacecraft: SilverSat, RHOK-SAT, Content-Cube, and CU-Alpha. Of these, CU-Alpha operates outside the amateur bands using LoRa at 915 MHz. The final release at 09:50 UTC deployed the two 3U amateur missions, EagleSat-2 and Foras Promineo, completing the NRCSD-29 sequence.

SilverSat, a 1U open-source CubeSat designed to inspire student interest in space science and engineering, was the first amateur satellite from NRCSD-29 to be positively heard on orbit. The spacecraft automatically relays images and telemetry to its ground network, which posts them to social-media platforms whenever a pass is received. European stations reported early carrier traces shortly after deployment, and the first confirmed CW beacon—sent at 16 WPM under the callsign “WP2XGW”—was received at approximately 14:46 UTC. SilverSat uses a UHF turnstile antenna oriented perpendicular to its magnetically stabilized axis, producing LHCP reception for most northern observers.

The 08:20 UTC deployment batch also included RHOK-SAT, Content-Cube, and a 1U CubeSat from Cornell University carrying a brief-duration light-sail experiment designed by students at the Space Systems Design Studio. The sail will be released during a later activation sequence following the CubeSat’s deployment and carries several ChipSat flight computers intended to transmit LoRa telemetry in the 70 cm amateur band during a short operational period. Because the timing of the sail’s release depends on mission conditions, additional details about the project and its ChipSat technology are available at alphacubesat.cornell.edu. Telemetry downlinks for this group include 435.425 MHz for RHOK-SAT (9600 FSK), 437.020 MHz for Content-Cube (9600 GMSK), and 437.400 MHz for the ChipSats, which may remain active only for hours to a few days before re-entry.

The two 3U satellites, EagleSat-2 and Foras Promineo, completed the deployments at 09:50 UTC. EagleSat-2, developed by undergraduate students at Embry-Riddle Aeronautical University, carries two scientific experiments: the Cosmic Ray Payload, designed to track high-energy particle interactions across three observation phases, and the Memory Degradation Experiment, which compares radiation-induced error rates in several CMOS memory technologies. EagleSat-2 transmits on 437.165 MHz using 19k2 2-GFSK. Foras Promineo supports a public-outreach mission based on an interactive robotic-arm game that operates autonomously or under real-time command during ground passes, transmitting LoRa telemetry on 437.400 MHz.

As of the first day of operations, SatNOGS contributors reported active tracking of all five amateur satellites using preliminary TLEs derived from ISS deployment vectors. With the objects initially clustered closely together, early identification required coordinated Doppler measurements and community-supported observation campaigns. As tracking continues to refine and the satellites separate further, operators can expect more reliable beacon reception and additional opportunities for amateur participation as the missions begin their operational phases.

Read the NRCSD29 ISS Satellites Deployment Libre Space discussion at: https://community.libre.space/t/nrcsd29-iss-satellites-deployment-2025-12-02-08-28-utc/14045

[ANS thanks AMSAT-Francophone and the Libre Space community for the above information]

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Only 3 Weeks Left to Get Your Coin!
Celebrate the 40th Anniversary of Amateur Radio on Human Spaceflight
Help Support GOLF and FoxPlus.

Annual memberships start at only $120
Join the AMSAT President’s Club today and help
Keep Amateur Radio in Space!
https://www.amsat.org/join-the-amsat-presidents-club/

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ARISS Moves Series 30 SSTV Transmissions to RS-38S After Equipment Issue

Amateur Radio on the International Space Station (ARISS) has released final scheduling details for the Series 30 Slow-Scan Television retransmission event, which will take place using the RS-38S satellite rather than the ISS. Transmissions are scheduled to begin on 5 December at 00:01 UTC (4 December at 7:01 PM ET) and continue through 13 December at 23:59 UTC. The images will be broadcast from RS-38S, also known as VIZARD-meteo and listed under NORAD 57189, on a downlink of 437.825 MHz with normal Doppler adjustments. Each image will be sent in Robot 36 mode for approximately 36 seconds, followed by a silence period of two to three minutes. Operators may upload their received images to the ARISS SSTV gallery to obtain a new Series 30-1 certificate tailored for the RS-38S event. The satellite can be monitored on amsat.org/status under its VIZARD-meteo entry, and pass-prediction tools are available at amsat.org/pass-prediction for those planning reception attempts.

The RS-38S retransmission provides amateurs an opportunity to receive all 12 Series 30 images after the ISS-based event in November was interrupted by a hardware issue. ARISS announced on 29 November that the RS-38S spacecraft would transmit the same Series 30 imagery during the period of 5–13 December, offering a complete replacement opportunity. This announcement was well received by participants who were unable to capture images during the short ISS transmission window on 12 November. As with previous SSTV events, stations may submit their best frames to the ARISS gallery and request corresponding certificates. The retransmission preserves the commemorative nature of Series 30 while operating entirely independent of ISS hardware. ARISS encourages operators worldwide to monitor its official channels for updates throughout the event period.

The satellite-based activity follows a series of technical difficulties that prevented completion of the original Series 30 event aboard the International Space Station. The ISS transmissions began on 12 November with approximately two hours of successful downlink activity, during which several stations worldwide decoded and uploaded clean images. Soon afterward, SSTV activity on 145.800 MHz FM abruptly stopped, prompting ARISS to acknowledge the outage and begin checking the system status with operations teams on the ground. Crew schedules and limited immediate access to the Service Module hardware initially slowed the troubleshooting process. Operators monitored the downlink throughout the day, but no additional frames were received. ARISS provided real-time updates confirming the outage and advising listeners that further checks were underway.

By 15 November, ARISS reported that the SSTV system had remained offline since the initial interruption and that ongoing solar activity added complexity to assessments of the Service Module equipment. U.S. teams awaited additional information, and only the early decodes from the opening hours of the event appeared in the official SSTV gallery. ARISS thanked operators for their continued patience and reminded them that certificates would still be issued for the initial images. Amateur radio stations worldwide continued to submit signal reports and monitor each ISS pass in hopes of renewed activity. Despite broad interest, no additional transmissions were detected. ARISS stated it would continue providing updates as new information became available.

On 16 November, after three days of analysis, ARISS confirmed that the ISS-based Series 30 event could not continue. The Kenwood D710GA transceiver in the Zvezda Service Module, which supports SSTV operations, appeared to have failed and was taken offline for further review. ARISS reported that the radio functioned normally for approximately two hours before the issue occurred, ending downlink activity for the remainder of the planned 12–20 November window. Operators who received images early in the event were encouraged to upload their frames before the submission deadline to qualify for Series 30 certificates. ARISS emphasized that those certificates would still be honored despite the shortened schedule. No additional transmissions were expected until testing of the affected hardware could be completed.

A follow-on update on 21 November clarified the status of the Service Module radio system. ARISS reported that the faulty Kenwood D710GA had been replaced with the onboard spare Kenwood D710E, which is now supporting scheduled Russian school contacts and required backup communications. Additional in-orbit testing of the original D710GA is planned to determine the cause of the failure and evaluate when APRS or SSTV capabilities might be restored. ARISS also confirmed that the Columbus module radio systems, including the cross-band FM repeater and HamTV equipment, continue to operate normally. Restoration of SSTV service from the ISS will depend on the results of continued hardware assessments. Until those evaluations are complete, ISS-based SSTV remains offline, and the RS-38S retransmission provides the primary means for operators to receive the full Series 30 imagery.

[ANS thanks Amateur Radio on the International Space Station (ARISS) for the above information]

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GridMasterMap Satellite Top 100 Rovers December 2025 Rankings

The December 2025 rankings for the Top 100 Rovers (Mixed LEO/MEO/GEO) in satellite operations, as determined by @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 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: 2025-12-02

1	ND9M	26	KX9X	51	KE0PBR	76	SP5XSD
2	NJ7H	27	KG5CCI	52	WD5GRW	77	DL4EA
3	UT1FG	28	DJ8MS	53	XE3DX	78	N6UTC
4	JA9KRO	29	N5BO	54	W7WGC	79	N4UFO
5	N5UC	30	ON4AUC	55	LU4JVE	80	VE7PTN
6	F5VMJ	31	K8BL	56	JK2XXK	81	PT2AP
7	DL6AP	32	KE4AL	57	PR8KW	82	VE1VOX
8	WI7P	33	KB5FHK	58	EB1AO	83	AA8CH
9	K5ZM	34	AC0RA	59	XE1ET	84	KB2YSI
10	DP0POL	35	PA3GAN	60	EA4NF	85	KI7UXT
11	OE3SEU	36	KI0KB	61	N6DNM	86	AF5CC
12	WY7AA	37	F4BKV	62	W8LR	87	KJ7NDY
13	N6UA	38	KI7UNJ	63	W1AW	88	BI1MHK
14	HA3FOK	39	VA3VGR	64	KI7QEK	89	PT9BM
15	LU5ILA	40	JO2ASQ	65	SM3NRY	90	FG8OJ
16	W5PFG	41	VE3HLS	66	KE9AJ	91	YU0W
17	AK8CW	42	BG7QIW	67	F4DXV	92	BG5CZD
18	N9IP	43	HJ5LVR	68	VE1CWJ	93	PU4CEB
19	AD0DX	44	LA9XGA	69	AA5PK	94	W8MTB
20	AD0HJ	45	VK5DG	70	AD7DB	95	N4DCW
21	DL2GRC	46	N7AGF	71	KM4LAO	96	WA9JBQ
22	N4AKV	47	K7TAB	72	M1DDD	97	BA8AFK
23	ND0C	48	DF2ET	73	HB9GWJ	98	VE3GOP
24	WD9EWK	49	JL3RNZ	74	VA7LM	99	JM1CAX
25	BA1PK	50	KE0WPA	75	N8RO	100	PS8BR

[ANS thanks @GridMasterMap for the above information]

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AMSAT Remove Before Flight Key Tags Now Available
Yes, These are the Real Thing!

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Changes to AMSAT TLE Distribution for December 5, 2025

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 satellites have been added to this week’s AMSAT TLE Bulletin:
SPIRONE NORAD Cat ID 66657
K-HERO NORAD Cat ID 66660

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]

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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.

Scheduled Contacts

+ Recently Completed

Istituto Di Istruzione Superiore “Il Tagliamento” Di Spilimbergo / Istituto Comprensivo “G. Mazzini”, Spilimbergo, Italy, telebridge via IK1SLD
The ISS callsign was OR4ISS
The scheduled crewmember was Zena Cardman KJ5CMN
The ARISS mentors were IZ2GOJ and IKØWGF
Contact was successful: Fri 2025-11-28 11:40:17 UTC
Congratulations to the Istituto Di Istruzione Superiore “Il Tagliamento” Di Spilimbergo (Pn) and Istituto Comprensivo “G. Mazzini” students, Zena, mentors IZ2GOJ and IKØWGF, and telebridge via IK1SLD!
Watch the Livestream at https://www.ariotti.com/ and https://www.youtube.com/live/MgG7kcYvxWM

Russian State Agrarian University – Moscow Agricultural Academy named after K.A. Timiryazev, Moscow, Russia, direct via TBD
The ISS callsign was RSØISS
The scheduled crewmember was Sergey Kud-Sverchkov
The ARISS mentor was RV3DR
Contact was successful: Fri 2025-12-05 11:00 UTC
Congratulations to the students of the Russian State Agrarian University – Moscow Agricultural Academy, Sergey Kud-Sverchkov, and mentor RV3DR on a successful contact!

Lincoln Magnet School, Springfield, Illinois, direct via K9OK
The ISS callsign was NA1SS
The scheduled crewmember was Jonathan (Jonny) Kim KJ5HKP
The ARISS mentor was AJ9N
Contact was successful: Fri 2025-12-05 15:29:41 UTC
Congratulations to the students of Lincoln Magnet School, Jonathan (Jonny) Kim KJ5HKP, and mentor AJ9N on a successful contact!

+ Upcoming Contacts

None currently scheduled

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.

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 remains configured in the Columbus Module (145.990 MHz up {PL 67} & 437.800 MHz down). If a crewmember decides to pick up the microphone and turn up the volume, you may hear them on the air—so keep listening, as you never know when activity might occur.

The service module IORS is not currently in APRS configuration and is being used only for voice contacts at this time. HamTV in the Columbus Module is configured for scheduled digital amateur television operations on 2395.00 MHz.

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.]

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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

None currently scheduled.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information.]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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AMSAT News Service

ANS-327
November 23, 2025

In this edition:

• September/October 2025 Edition of The AMSAT Journal Now Available
• New AMSAT CubeSatSim Lite Available on AMSAT Store Sunday
• Happy 12th Birthday to AO-73 (FUNcube-1)
• Successful Reception of CatSat 10 GHz Downlink
• SO-124 Nears End of Orbital Life
• Changes to AMSAT TLE Distribution for October 10, 2025
• ARISS News
• 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/

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September/October 2025 Edition of The AMSAT Journal Now Available

The September/October 2025 issue of The AMSAT Journal is now available to members on AMSAT’s Member Portal.

Click here to download your copy now

The AMSAT Journal is a bi-monthly digital magazine for amateur radio in space enthusiasts, published by the Radio Amateur Satellite Corporation (AMSAT). Each issue is your source for hardware and software projects, technical tips, STEM initiatives, operational activities, and news from around the world.

Inside the Current Issue:

• Apogee View – Drew Glasbrenner, KO4MA
• Educational Relations Update – Alan Johnston, KU2Y
• AMSAT Education and CubeSat Simulator Project Update – Alan Johnston, KU2Y
• The STAR Project and the CubeSatSim Lite – Mark Samis, KD2XS
• The Next Time We Might Receive a Message From the Stars – Joe Kornowski, KB6IGK
• Bridging Orbit and Classroom: SatNOGS and CubeSatSim Activities – Frederic Rabb, KK6NOW

[ANS thanks AMSAT for the above information]

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The 2025 AMSAT President’s Club Coins Are Here!
Celebrating the 40th Anniversary of Amateur Radio on Human Spaceflight
Help Support GOLF and Fox Plus.
Join the AMSAT President’s Club today!

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Happy 12th Birthday to AO-73 (FUNcube-1)

AO-73 celebrated its 12th birthday on November 21, 2025. The satellite is still operating well in full-time transponder mode.

On November 21, 2013 FUNcube-1 (AO-73) was launched from the Yasny launch base located in the Orenburg Region, Russia on a Dnepr Launch Vehicle into a 600 km, 97.8º inclination sun-synchronous orbit. In this orbit the satellite passes over the British Isles and Europe approximately 3 times in the morning, and 3 in the evening, every day, perhaps allowing the morning passes to be used for educational purposes and the evening passes for Amateur Radio communications.

FUNcube carries a UHF to VHF linear transponder that has 300 mW PEP output and which can be used by Radio Amateurs worldwide for SSB and CW communications.

Communication subsystem:
• 145.935 MHz BPSK Telemetry 30/300 mW
• Inverting SSB/CW transponder 300 mW
– 435.150 – 435.130 MHz Uplink
– 145.950 – 145.970 MHz Downlink

The passband may be up to 15 kHz higher depending on on-board temperatures. Low temperatures give higher frequencies

As of writing, ground stations from around the world have collected 11,631,536 frames of telemetry throughout the satellite’s life. The satellite’s recently received telemetry values can be found on AMSAT-UK’s Data Warehouse at http://data.amsat-uk.org/ui/fc1-fm.

 

[ANS thanks AMSAT-UK for the above information]

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Successful Reception of CatSat 10 GHz Downlink

Mike Seguin, N1JEz, reports the successful reception of the University of Arizona’s CatSat’s 10 GHz downlink on 10.47 GHz on the morning of November 21, 2025. The satellite’s  linear transponder uses 10 GHz down and 5 GHz up. More information is available at https://catsat.arizona.edu/

Mike reports that signals were quite good in FN34xn in Vermont! His next step is to try the uplink on 5 GHz on 5.663 GHz.

Below is a link to a portion of the pass. It is an I&Q file recorded with HDSDR using the Winrad format.

https://drive.google.com/file/d/15cuuhi-U5WDkVjiKHJeuP_argBhH0Cpz/view?usp=drive_link

Congrats to the CatSat team!!

[ANS thanks Mike Seguin, N1JEZ, and the University of Arizona’s CatSat Team for the above information]

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SO-124 Nears End of Orbital Life

Simulations indicate that the decay of our satellite HADES-R (SO–124) is approaching and will likely occur during the first two weeks of January 2026. If you can, take the opportunity to make use of this satellite, which has been working very well and has brought much joy to radio amateurs around the world. Any old FM equipment will work, since the repeater is level-activated and does not require a sub-tone.

The frequencies and operating modes are as follows:

SO-124

145.925 MHz uplink, Modes: FM voice (no sub-tone) and FSK 200 bps, AFSK, AX.25, APRS 1200 / 2400 bps
436.888 MHz downlink,  Modes: FM voice, CW, FSK 200–2400 bps

[ANS thanks Félix Páez, EA4GQS, AMSAT-EA for the above information]

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Changes to AMSAT TLE Distribution for November 21, 2025

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/.

This week there are no changes to the AMSAT TLE Distributions.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information]

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Need new satellite antennas?
Purchase an M2 LEO-Pack from the AMSAT Store!

When you purchase through AMSAT, a portion of the proceeds goes towards Keeping Amateur Radio in Space.

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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.

Scheduled Contacts

Istituto Di Istruzione Superiore “Il Tagliamento” Di Spilimbergo (Pn), Spilimbergo, Italy, telebridge via IK1SLD

AND

Istituto Comprensivo “G. Mazzini”, Livorno, Italy, telebridge via TBD

The ISS callsign is presently scheduled to be OR4ISS
The scheduled crewmember is Zena Cardman KJ5CMN
The ARISS mentor is IZ2GOJ

Contact is go for: Fri 2025-11-28 11:40:17 UTC 34 deg

Due to the scheduled docking of the Soyuz scheduled for Thu 2025-11-27 12:38 UTC, the radios will be powered down.  Here is the schedule for power down and power up:

Service module radio power down Thu 2025-11-27 10:35 to 10:40 UTC

Columbus module radio power down Thu 2025-11-27 10:40 to 10:45 UTC

Service module radio power up Fri 2025-11-28 10:15 to 10:20 UTC

Columbus module radio power up Fri 2025-11-28 10:20 to 10:25 UTC

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.

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]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!
25% of the purchase price of each product goes towards Keeping Amateur Radio in Space

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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

No events currently scheduled

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information]

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Satellite Shorts from All Over

+ China is set to launch an uncrewed Shenzhou spacecraft to the Tiangong space station to provide the Shenzhou-21 astronauts with a means of returning home. An airspace closure notice issued Nov. 17 indicates that China is preparing the Shenzhou-22 spacecraft and a Long March 2F rocket for launch at around 04:10z. on Nov. 25. (ANS thanks SpaceNews Weekly for the above information)

+ Reports indicate the Lobachevsky (RS83S) will be launched in late December. Although the IARU coordination request indicated that it would carry a digital repeater, the satellite’s website indicates that it carries an FM transponder with a 70cm uplink and a 2m downlink. (ANS thanks SpacePi and PV8DX for the information)

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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] arrl.net

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002

AMSAT News Service

ANS-320
November 16, 2025

In this edition:

* BOTAN Digipeater Schedule a Challenge for U.S. Hams
* Launch Scrubbed Due to ‘Highly Elevated Solar Activity’
* Alarm Over Reductions at Goddard Space Flight Center
* Comet Photos Plagued by Satellite Streaks
* Changes to AMSAT-NA TLE Distribution
* ARISS SSTV Event Continues
* ARISS News
* 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/

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BOTAN Digipeater Schedule a Challenge for U.S. Hams

BOTAN, a 1U cubesat built by students of the Chiba Institute of Technology in Japan, was deployed from the International Space Station (ISS) on October 10 via the Japanese Space Agency (JAXA) “Kibo” module. The satellite carries an earth-observation camera downloading images upon ground station command at 437.375 MHz. These downloads occur primarily when the satellite is over Japan.

Information on the satellite may be found at
https://sites.google.com/p.chibakoudai.jp/gardens-04/home-english?authuser=0

BOTAN also carries an APRS digipeater operating on 146.825 MHz. The digipeater is also activated by ground station command. Although the original design specifications called for the digipeater to remain active for 720 minutes (12 hours) after activation, observations have shown that it currently times out after 480 minutes (8 hours).

As a result, when the digipeater is activated by the command station in Japan, it has timed out before passing over portions of North America. Although the Chiba Institute has asked amateurs around the world for telemetry downloads, the attempts to make use of the satellite’s services have been frustrating for North American amateurs.

BOTAN is next scheduled for digipeater activation on 2025-11-16 at 08:53 UTC (although current Keplerian data does not show the bird over Japan until approximately half an hour after that time). Far west coast U.S. and Mexican stations would be in the footprint briefly in the first hour thereafter. The eight hour activation would end at 16:53 UTC. During that period the satellite will pass over Asia, Australia, Africa, Europe, and South America — but not over Central or North America. Interested operators are encouraged to watch for schedule changes.

Masahiro Sanada, JI1IZR, has posted a nice blog about the station setup he is using for BOTAN operation. The post may be found at https://ji1izr.cocolog-nifty.com/

[ANS thanks Chiba Institute of Technology and Masahiro Sanada, JI1IZR,  for the above information.]

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Only 6 Weeks Left to Get Your Coin!
Celebrating the 40th Anniversary of Amateur Radio on Human Spaceflight

Help Support GOLF and Fox Plus.
Annual memberships start at only $120
Join the AMSAT President’s Club today!

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Alarm Over Reductions at Goddard Space Flight Center

Alarm is growing among federal workers at NASA’s iconic Goddard Space Flight Center’s main campus in Greenbelt, Maryland — the nerve center for groundbreaking missions like the Hubble and James Webb space telescopes — as more than a dozen buildings on the campus are being emptied and padlocked during the federal shutdown, with very little notice to employees, said four sources who spoke to CNN on the condition of anonymity for fear of retribution. NASA leadership has pushed back against those concerns.

In one instance, furloughed employees were given just days to temporarily return to work and help empty entire buildings of highly specialized equipment, according to sources and internal emails obtained by CNN. In the communications, NASA managers wrote that equipment not moved in time — including one-of-a-kind hardware — could be thrown away or donated.

A Hubble Space Telescope composite image shows a supernova explosion designated SN 2014J in the galaxy M82.
Photo Credit: NASA Goddard

In a statement, a NASA spokesperson said the building closures are part of a “strategic consolidation” plan mapped out by Goddard leaders that should not impact ongoing projects.

One document reviewed by CNN, which was compiled by more than a dozen Goddard workers concerned about the steps taken at the campus, states that 13 buildings are being shuttered, including about 100 laboratories. The roughly 1,270-acre campus includes more than 30 large buildings and dozens of smaller structures.

The changes described by sources have the space agency’s engineers concerned they could permanently lose access to equipment and facilities that are crucial to keeping current and future projects on track.

[ANS thanks the CNN  for the above information. Read the full story at https://www.cnn.com/2025/11/04/science/nasa-goddard-building-closures-government-shutdown]

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Comet Photos Plagued by Satellite Streaks

Recent months have seen space fans revel in a wealth of spectacular astrophotography depicting the evolution of Comet Lemmon’s glowing coma and twisting tail as it journeyed through a Northern Hemisphere night sky swarming with satellites.

While many photographers opted to post sanitized views of Comet Lemmon, others intentionally compiled their images to reveal the incredible number of satellites that crossed the night sky over the course of multiple exposures.

A composite image of Comet Lemmon revealing where bright pixels were rejected by an image-stacking algorithm. (Image credit: Dan Bartlett via Space.com)

“Photographically, if someone is attempting to take a single image of a target and needs the image to be ‘clean’ — free of manmade objects — well, that image is nearly impossible to obtain,” astrophotographer Dan Bartlett told Space.com in an email. “Every single subframe I take (prior to stacking) now contains at least one, and usually more than one satellite streak.”

There are currently about 13,000 operational satellites orbiting Earth, of which about 8,900 are SpaceX Starlink craft. This number is set to exponentially increase, with SpaceX alone aiming to orbit up to 42,000 of its internet-beaming spacecraft, while competing companies aim to add thousands more satellites to their own “megaconstellations.”

Astrophotographers combat satellite streaks by capturing a multitude of short exposures over the course of a single session. The images are then combined and subjected to an algorithm that determines a median value for each pixel before rejecting outlier pixels with values that exceed set parameters.

[ANS thanks Space.com for the above information. Read the full article at https://www.space.com/stargazing/astrophotography/comet-lemmon-photos-are-plagued-by-satellite-streaks-heres-how-amateur-astronomers-face-the-problem .]

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Need new satellite antennas?
Purchase M2 LEO-Packs from the AMSAT Store

When you purchase through AMSAT, a portion of the proceeds goes towards
Keeping Amateur Radio in Space.
https://amsat.org/product-category/hardware/

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Changes to AMSAT TLE Distribution for November 14, 2025

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 distribution:

ENSO — NORAD Cat ID 58470 Decayed from orbit on or about 09 November 2025

The following satellite has been added to this week’s AMSAT distribution:

CEVROSAT1 — Provisional ID 98526 Note: Resource constraints at USSF 18SDS evidently are preventing generation of TLE for this satellite. The element set provided is unusally poor, expect the satellite to pass a minute or more away from predictions.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]

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ARISS SSTV Event Continues

The worldwide Amateur Radio on the International Space Station (ARISS) team and the global family of ham radio enthusiasts celebrated 25 years of continuous amateur radio operations on the International Space Station (ISS) on November 13, 2025.

Only eleven days after the Expedition 1 crew took up residence on ISS the crew turned on the ham radio system and began speaking with teams in Star City Russia, the NASA Goddard Space Flight Center in Greenbelt, Maryland, and the NASA Johnson Space Center in Houston, Texas.

Throughout it all volunteer ARISS team members have worked side by side with space agencies and astronauts and cosmonauts around the world to develop, certify, launch and operate the ham radio systems that enable creation of an amateur radio bridge between people on earth and spacefarers in orbit.

During 25 years of continuous operations, ARISS has connected 1 million kids in classrooms and information educational settings to the ISS through nearly 1,800 ham radio contacts. It’s all about Science, Technology, Engineering and Math (STEM) educational opportunities. Maximum value is added by working with educators to ensure that their students learn about space science, living and working in space, ISS research and radio communications. This educational element starts 4-6 months before the ARISS contact.

When the time comes for their once-in-a-lifetime radio contact with the ISS, they use an amateur radio ground station at their host organization or one of our international ground stations to talk directly to the astronauts and cosmonauts on ISS—LIVE!

There are two amateur radio stations on ISS, one in the Columbus Module and one in the Service Module, supporting 24/7 communications with hams on the ground via voice and digital repeaters in space. ARISS also provides opportunities for youth and radio amateurs to downlink pictures, called Slow Scan Television (SSTV), from ISS as well as standard Television downlinks using our HamTV system and our L/S-Band antennas.

It’s important to note that these amateur radio systems are completely independent from the ISS communications systems. Because of that, they also serve as a pivotal ISS backup communications capability. If the main ISS communications systems fail or are rendered unusable, our flight hardware and ground operations team is ready to spring into action 24/7.

As we cross the threshold of 25 years of continuous operations on ISS and look forward to many more, ARISS will begin a one-year commemoration of its achievements. Several interactive initiatives for youth, educators, ham radio operators and the public are planned. Stay tuned to the ARISS website and social media channels to find out what what is planned. As reported in AMSAT News Service bulletins last week, the first commemorative event is already underway—an SSTV (picture downlink) event that started November 12 and runs through November 19.

[ANS thanks Frank Bauer, KA3HDO, ARISS International Chair, ARISS-USA Executive Director,  for the above information.]

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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

Colegio Del Faro, Benavídez, Tigre, Argentina, direct via LU4BB
The ISS callsign was OR4ISS
The scheduled crewmember was Mike Fincke KE5AIT
The ARISS mentor was VE3TBD
Contact was successful: Tue 2025-11-11 18:18:56 UTC 51 degrees maximum elevation
Congratulations to the Colegio Del Faro students, Mike, mentor VE3TBD, and ground station LU4BB!

Scheduled Contacts

SPACE Academy of Azercosmos, Baku, Azerbaijan, direct via 4K4AZE
The ISS callsign is presently scheduled to be OR4ISS
The scheduled crewmember is Mike Fincke KE5AIT
The ARISS mentor is SP3QFE
Contact is go for: Sun 2025-11-16 14:53:03 UTC 28 degrees maximum elevation

Russian school TBD, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Oleg Platonov
The ARISS mentor is RV3DR
Contact is go for Tue 2025-11-18 10:10 UTC

Escuela Jose Marti, Mexico City, Mexico, telebridge via IK1SLD
The ISS callsign is presently scheduled to be TBD
The scheduled crewmember is Zena Cardman KJ5CMN
The ARISS mentor is VE3TBD
Contact is go for: Wed 2025-11-19 15:34:03 UTC 55 degrees maximum elevation

Russian school TBD, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Oleg Platonov
The ARISS mentor is RV3DR
Contact is go for Thu 2025-11-20 14:50 UTC

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.

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.

Packet operations (145.825 MHz up & down) suspended for SSTV (145.800 MHz down)​​ until November 20.

Ham TV is configured for​​​ scheduled digital amateur television operations (2395.00 MHz).

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.]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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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.

None currently scheduled.

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information.]

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Satellite Shorts from All Over

+ Amazon is rebranding its “Project Kuiper” constellation of satellites in low Earth orbit. The program will now be known as “Amazon Leo.” There are now 153 Kuiper satellites satellites in orbit, intended to provide high-speed internet connections worldwide. (ANS thanks Amazon for the above information.)

+ LambdaVision, a biotech company, has flown nine missions to the ISS, where it produced a 200-layer protein thin film as a precursor to an artificial retina implants. Most recently, the company won a NASA Phase 2 In Space Production Applications award in September to continue developing the company’s in-space manufacturing process — in this case, in partnership with microgravity research firm Space Tango. (ANS thanks PayloadSpace.com for the above information. See the full article at https://payloadspace.com/lambdavision-closes-7m-seed-round-to-make-retinas-in-leo/.)

+ Three Chinese astronauts returned from their nation’s space station Friday after more than a week’s delay because the return capsule they had planned to use was damaged, likely from being hit by space debris. The team left their Shenzhou-20 spacecraft in orbit and came back using the recently arrived Shenzhou-21, which had ferried a three-person replacement crew to the station, China’s Manned Space Agency said. The original return plan was scrapped because a window in the Shenzhou-20 capsule had tiny cracks, most likely caused by impact from space debris, the space agency said Friday. (ANS thanks the Associated Press for the above information. Read the full story at https://apnews.com/article/china-space-station-stranded-crew-shenzhou-e266f7106491b587e60d303068973761)

+ SpaceX launched another batch of Starlink broadband satellites November 10 on a Falcon 9 rocket. It was the 94th orbital mission so far this year from Cape Kennedy, breaking 2024’s record of 93 launches. A SpaceX executive said at a conference recently that he expected the company to finish the year with 165 to 170 Falcon 9 launches, which would also be a record. The total number of Starlink satellites launched so far in 2025 is 2,600. And the year’s not over yet. (ANS thanks SpaceNews Editor’s Choice newsletter for the above information.)

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Join AMSAT today at https://launch.amsat.org/

In addition to regular membership, AMSAT offers membership to:

• Societies (a recognized group, clubs or organization).
• Students under age 25 are eligible for free membership.
• 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,

Mark Johns, KØJM
mjohns [at] amsat.org

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002
AMSAT is a registered trademark of the Radio Amateur Satellite Corporation.

AMSAT News Service

ANS-313
November 9, 2025

In this edition:

* SpaceX Bandwagon-4 Mission Places CEVROSAT-1 in Orbit with Rideshare Payloads
* CatSat to Open Microwave Linear Transponder Access for Amateur Radio Community
* ARISS to Mark 25 Years of ISS With Special Worldwide SSTV Event in November
* Digital Library of Amateur Radio and Communications Adds AMSAT Publications
* AI Fix from Earth Restores James Webb Telescope Clarity, No Astronauts Needed
* Changes to AMSAT-NA TLE Distribution for November 7, 2025
* ARISS News
* 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/

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SpaceX Bandwagon-4 Mission Places CEVROSAT-1 in Orbit with Rideshare Payloads

SpaceX launched its Bandwagon-4 rideshare mission on November 2 at 0509 UTC from Cape Canaveral Space Force Station, deploying eighteen satellites into a mid-inclination low Earth orbit. The flight is part of SpaceX’s dedicated mid-inclination rideshare program, complementing the Transporter series that serves sun-synchronous orbit customers. All spacecraft were successfully released from the Falcon 9 upper stage approximately seventy-five minutes after liftoff.

The manifest included CEVROSAT-1, an amateur radio satellite built by CEVRO University in the Czech Republic in partnership with Mendel University in Brno and Brno University of Technology. The 48-kilogram microsatellite carries a 9k6 G3RUH GFSK digipeater and AX.25 telemetry on 436.025 MHz, coordinated through the IARU. First signals were received shortly after deployment, with amateur operators reporting telemetry and digipeated packets and uploading frames to the SatNOGS network. The satellite supports student research, hands-on engineering education, and amateur radio experimentation, including an Earth-imaging payload and an optical reflector system for laser technology trials.

The largest spacecraft on the mission was a synthetic aperture radar (SAR) imaging satellite for South Korea’s Project 425 defense reconnaissance program. This continues South Korea’s partnership with SpaceX to deploy a constellation of independent surveillance satellites, following earlier launches on previous Bandwagon missions. The spacecraft is expected to provide high-resolution radar imagery to support national security and intelligence activities.

Commercial Earth-observation company Iceye launched three additional SAR satellites for the Emirati firm Space42, expanding the “Foresight Constellation” for regional surveillance and environmental monitoring. Weather intelligence provider Tomorrow.io also flew two spacecraft to enhance its global atmospheric sensing network, supporting improved forecasting and climate-modeling applications.

Commercial space station developer Vast deployed its Haven-Demo spacecraft, a 500-kilogram technology demonstrator designed to validate systems for the upcoming Haven-1 private station. The satellite will test avionics, communications, propulsion, and power systems in orbit. In addition, Starcloud launched Starcloud-1, a technology demonstration spacecraft billed as the first on-orbit artificial-intelligence compute node, featuring an advanced Nvidia processor intended to run large language models in space.

The Bandwagon-4 mission demonstrates the increasing diversity of spacecraft utilizing commercial rideshare launches, spanning defense, scientific, commercial, and amateur radio missions. With CEVROSAT-1 now active on orbit, radio amateurs are encouraged to monitor 436.025 MHz and submit reception reports as commissioning continues.

Read the full article at: https://spacenews.com/spacex-launches-fourth-bandwagon-rideshare-mission/

[ANS thanks Jeff Foust, SpaceNews, and the Libre Space community, for the above information]

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CatSat to Open Microwave Linear Transponder Access for Amateur Radio Community

The CatSat team has announced that preparations are underway to open public operation of the spacecraft’s linear transponder, offering the amateur-radio community a new microwave-band satellite resource. CatSat, a 6U CubeSat developed and flown by students, faculty, and staff at the University of Arizona in partnership with FreeFall Aerospace and Rincon Research, has been on orbit since July 2024 and is now entering the phase of its mission focused on community engagement and technology demonstration.

CatSat was launched aboard a Firefly Aerospace Alpha rocket from Vandenberg Space Force Base as part of NASA’s CubeSat Launch Initiative. Measuring roughly the size of a family-size cereal box, the spacecraft carries a suite of experimental payloads, including a novel inflatable antenna capable of enabling large-aperture communications from a small satellite platform. In addition to ionospheric monitoring via high-frequency (HF) radio measurements and imaging of the Earth, CatSat includes a linear transponder for amateur radio, extending the University of Arizona’s long legacy in space science down to hands-on student involvement.

The satellite orbits Earth in a nearly sun-synchronous polar orbit, circling the globe approximately every 90 minutes. As part of its student-driven mission, CatSat is demonstrating how cutting-edge antenna systems and commercial-off-the-shelf radio hardware can support meaningful research and amateur communications from a compact form factor. The mission is funded by the University of Arizona Office of the Vice President for Research and the Arizona Space Institute, with additional support from industry partners.

When the linear transponder is active, CatSat listens on 5.663 GHz (uplink) and transmits on 10.47 GHz (downlink), providing approximately 200 kHz of bandwidth. Patch antennas on the spacecraft’s −Y face offer roughly 60-degree beam coverage, and the attitude-control system can point the antenna footprint at ground stations for up to 10 minutes per pass. Power considerations limit each activation to about 15 minutes, a balance that allows the spacecraft to support both mission science and amateur communications.

Early on-orbit demonstrations used a 1-meter C-band uplink dish and a 6.1-meter X-band downlink dish to confirm transponder functionality, successfully relaying Morse code. The CatSat team is now constructing a more accessible ground station using 1-meter-class commercial antennas to show that amateur access is practical with reasonably sized equipment. Operators will be able to monitor schedule updates — informally known as the “five and dime” plan — through the CatSat mission website.

Commissioning passes targeting the CatSat ground stations in Tucson took place on October 29 and November 2, with one final activation scheduled for November 9 at approximately 7:50 PM MST (UTC-7) — just hours after this bulletin’s publication. As testing continues, dates may shift as the team evaluates performance and power-budget constraints. Operators can follow activation plans and future opportunities at https://catsat.arizona.edu.

Read the full announcement at: https://catsat.arizona.edu/news/catsat-team-preparing-public-linear-transponder-operations

[ANS thanks the CatSat Team and the University of Arizona for the above information]

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Only 7 Weeks Left to Get Your Coin!
Celebrate the 40th Anniversary of Amateur Radio on Human Spaceflight
Help Support GOLF and FoxPlus.

Annual memberships start at only $120
Join the AMSAT President’s Club today and help
Keep Amateur Radio in Space!
https://www.amsat.org/join-the-amsat-presidents-club/

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ARISS to Mark 25 Years of ISS With Special Worldwide SSTV Event in November

Amateur Radio on the International Space Station (ARISS) will commemorate the 25th anniversary of continuous human presence aboard the International Space Station with a special worldwide Slow-Scan Television (SSTV) event in mid-November. The ISS has been continuously inhabited since November 2, 2000, marking a major milestone in human spaceflight and international cooperation. ARISS, the first educational payload on the station, continues to play a key role in inspiring students, supporting STEM engagement, and connecting the global amateur radio community with astronauts in orbit.

The Series 30 SSTV event, titled “ISS at 25 and Scouts!” will feature 12 SSTV images celebrating the station’s 25-year milestone and Scouting. Transmissions are scheduled to begin Wednesday, November 12 around 1730 UTC and continue through Thursday, November 20 (time TBD). Downlink will occur on 145.800 MHz FM using the PD120 mode, following the standard ARISS pattern of approximately two minutes of transmission followed by two minutes off. A planned pause in images will occur to support an ARISS school contact with Azerbaijan on November 16 at 1450 UTC.

Radio amateurs and listeners worldwide are encouraged to participate, as ISS SSTV events are accessible to stations with a broad range of equipment. Many operators successfully receive images using only a handheld VHF radio and a phone-based decoding app, while more advanced satellite stations can produce particularly clean results. SSTV events continue to be a popular entry point for newcomers interested in amateur space communication.

Participants may upload their best received image to the ARISS SSTV portal at https://ariss-usa.org/ARISS_SSTV/ and then request a commemorative event certificate. Submitted images must be single, unedited SSTV frames in GIF, JPG, or PNG format, limited to 800×800 pixels and 800 kB. Once the image is uploaded, operators will be prompted to request their personalized certificate, and because submissions are only accepted for a short time after the conclusion of the event, prompt participation is encouraged.

In keeping with past ARISS activities, operators may also request a traditional ARISS QSL card to confirm SSTV reception. QSL requests must be mailed to the appropriate regional bureau with a self-addressed stamped envelope or sufficient return postage. Details and mailing addresses for each world region are available at https://www.ariss.org/qsl-cards.html, and operators should include date, time, frequency, and mode with their report.

Additional updates and operating details will be posted on www.ariss.org and ARISS social media channels as the event approaches. AMSAT congratulates ARISS and the ISS program on 25 years of continuous human presence aboard the station and encourages radio amateurs everywhere to join in this special commemorative SSTV celebration honoring the ISS legacy and the role of amateur radio in space education.

[ANS thanks Amateur Radio on the International Space Station (ARISS) for the above information]

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Digital Library of Amateur Radio and Communications Adds AMSAT Publications

The Digital Library of Amateur Radio and Communications recently added publications provided by AMSAT from 1969-2013 to the Internet Archive. These include the vast majority of issues of the AMSAT Newsletter, AMSAT Satellite Report, AMSAT’s ORBIT magazine, and The AMSAT Journal for that time period.

The Digital Library of Amateur Radio and Communications is a library of materials and collections related to amateur radio and early communications. The DLARC is funded by a significant grant from Amateur Radio Digital Communications, a private foundation, to create a digital library that documents, preserves, and provides open access to the history of this community.

The Digital Library of Amateur Radio and Communications can be accessed at https://archive.org/details/dlarc

AMSAT publications can be found at https://archive.org/search?query=creator%3A%22AMSAT%22

Issues of The AMSAT Journal from 2014 to the present can be accessed by AMSAT members at https://launch.amsat.org/The_AMSAT_Journal

[ANS thanks the Digital Library of Amateur Radio and Communications for the above information]

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AI Fix from Earth Restores James Webb Telescope Clarity, No Astronauts Needed

NASA’s James Webb Space Telescope (JWST) has received a remarkable upgrade — not from astronauts or hardware, but from artificial intelligence. Researchers at the University of Sydney developed a software-based solution that corrected subtle image blurring in one of JWST’s most sensitive instruments, restoring the telescope’s precision without the need for any on-orbit servicing mission.

The issue affected JWST’s Aperture Masking Interferometer (AMI), a specialized instrument designed to resolve extremely fine features when observing stars and exoplanets. Soon after operations began, scientists noticed faint distortions caused by tiny electronic effects within the infrared detector. Rather than planning a complex repair mission, similar to how astronauts serviced the Hubble Space Telescope decades ago, the team pursued a software-only approach.

Two PhD researchers, Louis Desdoigts and Max Charles, created a new calibration system called AMIGO that uses artificial intelligence to model the behavior of JWST’s detector in space. By correcting a phenomenon known as the “brighter-fatter effect,” where electrical charge slightly spreads between pixels, their software restored AMI’s ability to produce extremely sharp, high-contrast images from millions of miles away.

With the correction applied, JWST has achieved sharper-than-ever detections of faint and closely orbiting objects. The team demonstrated improved imaging of a dim exoplanet and a brown dwarf companion orbiting the nearby star HD 206893, about 133 light-years from Earth. Additional examples included high-resolution observations of Io’s volcanic surface, a Wolf-Rayet star system, and a distant black hole jet — confirming that the fix significantly boosts scientific capability.

The effort highlights a growing era where software and artificial intelligence can enhance or even “repair” spacecraft from the ground. “Instead of sending astronauts to bolt on new parts, they managed to fix things with code,” said Professor Peter Tuthill of the University of Sydney, whose group originally contributed the AMI instrument design for JWST. The achievement underscores both the telescope’s flexibility and Australia’s strong role in cutting-edge astronomical instrumentation.

The research has now been publicly released and peer-review is underway. The software tools are being prepared for use by the broader JWST science community, ensuring the telescope continues delivering unmatched views of the universe — all thanks to a clever fix developed on Earth, with no spacewalks or hardware intervention required.

Read the full article at: https://scitechdaily.com/how-ai-saved-nasas-10-billion-webb-telescope-from-blurry-vision/

ANS thanks University of Sydney and SciTechDaily for the above information]

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AMSAT Remove Before Flight Key Tags Now Available
Yes, These are the Real Thing!

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Changes to AMSAT TLE Distribution for November 7, 2025

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/.

This week there are no additions or deletions to the AMSAT TLE distribution.

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]

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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.

Scheduled Contacts

+ Recently Completed

Petőfi Sándor Evangélikus Gimnázium, Kollégium és Általános Iskola, Mezőberény, Hungary, Telebridge via K6DUE
The ISS callsign was NA1SS
The scheduled crewmember was Jonathan (Jonny) Kim KJ5HKP
Contact was successful: Fri 2025-11-07 08:13:22 UTC
Watch the Livestream at https://www.facebook.com/share/16x7e1jvTv/ and https://www.facebook.com/mpseg/live_videos/

+ Upcoming Contacts

Colegio Del Faro, Benavídez, Tigre, Argentina, direct via LU4BB
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Mike Fincke KE5AIT
The ARISS mentor is VE3TBD
Contact is go for: Tue 2025-11-11 18:18 UTC

SPACE Academy of Azercosmos, Baku, Azerbaijan, direct via 4K4AZE
The ISS callsign is presently scheduled to be OR4ISS
The scheduled crewmember is Mike Fincke KE5AIT
The ARISS mentor is SP3QFE
Contact is go for: Sun 2025-11-16 14:53 UTC

Russian school TBD, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Oleg Platonov
The ARISS mentor is RV3DR
Contact is go for Tue 2025-11-18 10:10 UTC

Russian school TBD, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Oleg Platonov
The ARISS mentor is RV3DR
Contact is go for Thu 2025-11-20 14:50 UTC

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.

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.

Packet operations continue to be active (145.825 MHz up & down). HamTV is configured (2395.00 MHz).

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.]

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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

None currently scheduled.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information.]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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AMSAT News Service

ANS-299
October 26, 2025

In this edition:

* AMSAT President Outlines Future Directions
* Symposium Videos Available on YouTube
* Is AO-7 Still the Oldest Satellite?
* Amateur Radio Receiver Reveals Global Satellite Privacy Issue
* Changes to AMSAT-NA TLE Distribution
* Russian Cosmonauts Conduct Spacewalk Outside ISS
* ARISS News
* 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/

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AMSAT President Outlines Future Directions

At the Annual General Meeting of AMSAT members, held as part of the AMSAT Symposium in Phoenix, Ariz. last weekend, newly elected AMSAT President Drew Glasbrenner, KO4MA, outlined some future directions for the organization.

Noting that membership in organizations and voluntary associations of all types has been declining across the board, in all areas of society, Glasbrenner suggested a two-pronged approach.

First, reduce the cost per member. AMSAT has already made major steps in that direction, by closing the office and changing to an all-volunteer administration, and also by changing the AMSAT Journal from print to a digital publication. The organization should seek more opportunities to economize.

Second, increase membership by creating a strategy to actively seek and invite new hams. The Board has just approved a free student membership to bring young hams into the organization. Reinstating a College Activity Night on the satellites, an AMSAT Youth Net, and publicizing youth satellite activities are priorities. Another possibility might be a two-tiered membership structure with a low-fee introductory membership.

AMSAT President Drew Glasbrenner, KO4MA, addresses the 2025 Annual General Meeting in Phoenix (Credit: David Vine, WA1EAW, AMSAT Director of Public Relations)

Glasbrenner also noted that government budget cuts have caused NASA to eliminate the CubeSat Launch Initiative program (CSLI), which provided free launch opportunities to educational projects. AMSAT has benefited from CSLI, but has also purchased commercial launches in the past. He indicated that AMSAT should not wait to see if CSLI is reinstated or replaced with a similar program, but that the organization should move forward to fund commercial launches for GOLF-Tee and Fox Plus satellites that are nearing readiness in coming months.

Another challenge facing AMSAT is that it is becoming increasingly difficult to operate in Low Earth Orbit (LEO). While orbital debris regulations forbid launches to higher orbits without meeting stringent technical requirements for deorbiting, reentry devices are largely unavailable or unproven. The GOLF program is meant to address this, but launches to higher orbits are also difficult to find. Future rules may mandate propulsion for collision avoidance in LEO.

A strategy to meet these orbital challenges is to focus on developing amateur radio payloads that can fly on other satellites. The Italian Greencube satellite, IO-117, was an example. To take advantage of these opportunities, AMSAT engineers must focus on developing payloads as a series, rather than as single projects, so that units are “on the shelf” and available on short notice. The SDR Gen2 transverter board – an updated version of the units flown on HuskySat and MESAT1 – is a major step in this direction, as is the updated PacSat board under development. The GOLF and Fox Plus programs are also being crafted to create satellites in a series with iterative improvements and an up-tempo launch cadence.

Finally, Glasbrenner called for strengthening international collaboration with other AMSAT organizations around the world, as well as establishing mechanisms for strategic planning at the Board of Directors level. His address was received enthusiastically by those in attendance.

[ANS thanks Mark Johns, KØJM,  News Service Senior Editor, for the above information.]

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The 2025 AMSAT President’s Club Coins Are Here!
Celebrating the 40th Anniversary of Amateur Radio on Human Spaceflight
Help Support GOLF and Fox Plus.
Join the AMSAT President’s Club today!

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Amateur Radio Receiver Reveals Global Satellite Privacy Issue

Imagine that you can buy a device for ​a few hundred dollars and listen in on private conversations, military negotiations, and even intercept important commands for power systems around the world. This is not a scene from a spy movie, but harsh reality. The vulnerability was accidentally discovered by researchers from the University of California and the University of Maryland. For three years, they listened in on secret military and private communications. The result was astonishing: almost half of all satellite transmissions were completely unencrypted.

Analysis of the intercepted traffic showed that the following was transmitted over the open airwaves:

• Private phone calls and SMS messages from T-Mobile customers.
• Wi-Fi data from airplanes.
• Critical commands for managing power grids and oil platforms.
• Military and police reports revealing troop locations and details of secret missions.

Governments and corporations rely on these systems, considering them to be reliably secure. In fact, the risks are much more serious than just a breach of confidentiality. This vulnerability can be used as a weapon to track troop movements, sabotage vital infrastructure, and steal data on a massive scale.

The most disastrous aspect is that scientists analyzed only 15% of the total traffic, meaning that the actual scale of the problem could be much greater.

[ANS thanks E.Mike McCardel, AA8EM, and Ivan Hrinko of Universe Space Tech for the above information. Read the full article at https://universemagazine.com/en/amateur-radio-receiver-reveals-global-satellite-communications-disaster/.]

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Changes to AMSAT TLE Distribution for October 24, 2025

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 satellites have been removed from this week’s AMSAT TLE distribution:

• NOAA-15 NORAD Cat ID 25338 Spacecraft decommissioned 19 August 2025
• NOAA-19 NORAD Cat ID 33591 Spacecraft decommissioned 13 August 2025
• UPMSat 2 NORAD Cat ID 46276 Decayed from orbit on or about 11 October 2025
• LEDSAT NORAD Cat ID 49069 Decayed from orbit on or about 15 October 2025
• CAS-4A NORAD Cat ID 42761 Decayed from orbit on or about 9 October 2025
• CAS-4B NORAD Cat ID 42759 Decayted from orbit on or about 14 October 2025

The following satellites have been added to this week’s AMSAT TLE distribution:

• BOTAN NORAD Cat ID 65942 437.379 MHz
• GHS-01 NORAD Cat ID 65733 437.090 MHz
• Dragonfly NORAD Cat ID 65729 437.375 MHz
• RSP-03 NORAD Cat ID 65732 437.050 MHz

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]

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Russian Cosmonauts Conduct Spacewalk Outside ISS

Two Russian cosmonauts are back inside the International Space Station (ISS) after conducting a spacewalk to install a semiconductor materials experiment, as well as retrieve and jettison a no-longer-needed camera from the exterior of the orbiting complex.

Expedition 73 crew from three different space agencies. Seated in the front row are NASA astronauts Mike Fincke and Zena Cardman. In the back row from left are, Roscosmos cosmonaut Oleg Platonov; NASA astronaut Jonny Kim; Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky; and JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui. (Credit: NASA/Josh Valcarcel)

Expedition 73 commander Sergey Ryzhikov and flight engineer Alexey Zubritsky, both with Russia’s federal space corporation Roscosmos, marked the end of their first extravehicular activity (EVA) together.

Ryzhikov and Zubritsky installed the drum-shaped unit, ran power cables and mounted a swappable cassette. The experiment is intended to demonstrate the ability to produce very thin materials — too thin to be made reliably on Earth — that can go from the microgravity environment of outer space to being used in semiconductors.

Their primary task completed, Ryzhikov and Zubritsky then made their way to the Zvezda service module to remove and dispose of a high-definition television system that was originally a part of a Canadian commercial payload. Zubritsky then stood a the end of the European Robotic Arm and tossed the camera overboard, toward the rear of the space station, ensuring it would not come back in contact with the outpost.

[ANS thanks space.com for the above information. See the full article at http://bit.ly/4nepOWH.]

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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
Colegio de Cultura Popular, Bogotá, Colombia, telebridge via AB1OC
The ISS callsign was presently scheduled to be NA1SS
The scheduled crewmember was Zena Cardman KJ5CMN
The ARISS mentor was VE6JBJ
Contact was successful: Thu 2025-10-23 13:46:10 UTC 63 degrees maximum elevation
Congratulations to the Colegio de Cultura Popular students, Zena, mentor VE6JBJ, and telebridge AB1OC!

18th Primary School of Larissa, Larissa, Greece, Telebridge via K6DUE
The ISS callsign was presently scheduled to be NA1SS
The scheduled crewmember was Mike Fincke KE5AIT
The ARISS mentor was IKØWGF
Contact was successful: Fri 2025-10-24 08:04:47 UTC 33 degrees maximum elevation
Congratulations to the 18th Primary School of Larissa students, Mike, mentor IKØWGF, and telebridge K6DUE!

Terre Haute Children’s Museum, Terre Haute, Indiana, direct via W9UUU
The ISS callsign was presently scheduled to be NA1SS
The scheduled crewmember was Jonathan (Jonny) Kim KJ5HKP
The ARISS mentor was KD8COJ
Contact was completed: Sat 2025-10-25 13:45:00 UTC 52 degrees maximum elevation
Watch for Livestream at https://live.ariss.org

UPCOMING
Miejski Dom Kultury w Koło (abrr. MDK), Koło, Poland, Telebridge via AB1OC
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Zena Cardman KJ5CMN
The ARISS mentor is SP3QFE
Contact is go for: Wed 2025-10-29 10:36:06 UTC 49 degrees maximum elevation

Australian Air League, Adelaide, South Australia, Australia, telebridge via VK4ISS
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Mike Fincke KE5AIT
The ARISS mentor is VK4KHZ
Contact is go for: Fri 2025-10-31 09:59:01 UTC 39 degrees maximum elevation

Q-Tech conference – Wavell State High School, Wavell Heights, Queensland, Australia, telebridge via VK4ISS
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Jonathan (Jonny) Kim KJ5HKP
The ARISS mentor is VK4KHZ
Contact is go for: Sat 2025-11-01 09:10:47 UTC 86 degrees maximum elevation

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.

As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol:
Powering OFF ​Oct 28, 10:15 UTC, Powering ON Oct 29, 09:05 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.

Packet operations continue to be active (145.825 MHz up & down). HamTV is configured (2395.00 MHz).

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.]

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Want to fly the colors on your own grid expedition?
Get an AMSAT car flag and other neat stuff from our Zazzle store!

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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.

Ambassador Clint Bradford, K6LCS, writes:
AMSAT Ambassadors spread the word on amateur satellites – world-wide! If we’re not local to your club or convention, we’ll Zoom a show for you! An email I recently received:

“Clint,

“I wanted to thank you for your presentation. Our audience – both in person and via ZOOM – were all very enthusiastic about both the content and the unique way you presented it. While I had heard about the personalization used in your presentations, you really have to see it to appreciate it! I especially like how you threw in pictures from our club web site and addressed us personally.

“I was also appreciative of how you talked about the things you heard during our opening discussion, such as our recent HF antenna build. And how you gave the club officers kudos for working with the club. We tell our members that the club officers are only the facilitators, that they are the heart and soul.

“Once again, thank you for the great presentation! I hope you keep doing this, as it show great Amateur Radio spirit and a dedication to the hobby that is sorely needed.

“Regards,
“David Chapman – W9DPY
“VP, Williamson County”

Interested in becoming an AMSAT Ambassador? AMSAT Ambassadors provide presentations, demonstrate communicating through amateur satellites, and host information tables at club meetings, hamfests, conventions, maker faires, and other events.

For more information go to: https://www.amsat.org/ambassador/

[ANS thanks Bo Lowrey, W4FCL, Director – AMSAT Ambassador Program, for the above information.]

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Satellite Shorts from All Over

+ AMSAT is pleased to announce two new recipients of the prestigious GridMaster Award. Jean-Pierre Plessis, KQ4DO, earned GridMaster Award #75 on October 6, 2025, and Dwight Fletcher, N1RCN, became recipient #76 on the same date. The GridMaster Award is presented to amateur radio operators who confirm all 488 Maidenhead grid squares in the continental United States via satellite, a milestone that requires years of persistence and dedication. This accomplishment highlights both the operating skill of the awardees and the vital role of portable operators who activate rare grids. Only a very small group of amateurs have achieved this distinction, making it one of the highest honors in satellite operating. Congratulations to Jean-Pierre and Dwight on their outstanding achievements. (ANS thanks Bruce Paige, KK5DO, AMSAT Director of Contests & Awards for the above information)

+ AMSAT-UK is 50 years old! To celebrate, they will use the callsign GB50AUK from 1st to 28th November 2025 on the satellites. QSLs via eQSL and QO-100 DX Club (qrz.com and LoTW pending). (ANS thanks Dave Johnson, G4DPZ, Hon Sec, AMSAT-UK, for the above information.)

+ A giant radio telescope in Crimea used in the past to support missions to Mars and Venus and attempt to contact alien civilizations has been destroyed in a drone attack. Ukrainian defense forces took down the 230-foot (70 meters) antenna dish to prevent Russian forces from using it to guide attacks on its territory. The RT-70 radio telescope has been under Russian control since the annexation of the Crimean peninsula in 2014. According to Defense Express, Russians carried out major upgrades to the 5,000 metric ton structure to use it for military communications. (ANS thanks Space.com for the above information. Read the full article at https://www.space.com/astronomy/drone-destroyes-rt-70-radio-telescope-crimea.)

+ The Orion spacecraft for the Artemis 2 mission has been installed on its Space Launch System rocket as preparations for the circumlunar flight continue despite a government shutdown. Orion rolled over to the VAB late Oct. 16 after completing work at another building at the center. That included having its launch abort system attached to the top of the capsule. At the Kennedy Space Center, where Artemis 2 launch preparations are taking place, 989 of the center’s 2,075 civil servants are excepted from furloughs, although they are currently not being paid. (ANS thanks SpaceNews for the above information. See the full article at https://spacenews.com/orion-installed-on-sls-as-artemis-2-preparations-continue-during-shutdown/ [pay walled].)

+ Roughly 4,000 NASA employees — over 20% of the agency — have left in the past six months. Some were fired or retired early. Many took voluntary buyouts. In all cases, the root cause was the same: orders from on high to prepare for devastating budget cuts. The Planetary Society conducted interviews with a number of the former employees. See the interviews at https://www.planetary.org/articles/4000-gone-inside-nasas-brain-drain (ANS thanks The Planetary Society for the above information.)

+ AMSAT’s CubeSat SIM gets a mention in a YouTube video about using Raspberry Pi computers for STEM education. Watch the 29 minute video at https://www.youtube.com/watch?v=qvN3sE2Nv4U. Find out more about AMSAT’s CubeSat SIM at https://cubesatsim.com/. (ANS thanks Geeky Gadgets for the above information.)

 

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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,

Mark Johns, KØJM
mjohns [at] amsat.org

ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H Street NE, Suite 1653, Washington, DC 20002
AMSAT is a registered trademark of the Radio Amateur Satellite Corporation.