In this edition:

* SpaceX Delays Crew-8 Astronaut Launch to Make Way for Private Moon Mission
* Upcoming Rideshare Launch to Include Amateur Payloads
* Bill Introduced to Eliminate Private Land Use Restrictions on Amateur Radio
* Small Launch Companies Seek Niches to Compete With SpaceX Rideshare
* Changes to AMSAT-NA TLE Distribution for February 16
* ARISS News
* Upcoming Satellite Operations
* Hamfests, Conventions, Maker Faires, and Other Events
* 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 http://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/

ANS-049 AMSAT News Service Weekly Bulletins

To: All RADIO AMATEURS
From: Radio Amateur Satellite Corporation
712 H Street NE, Suite 1653
Washington, DC 20002

DATE 2024 Feb 18

SpaceX Delays Crew-8 Astronaut Launch to Make Way for Private Moon Mission

NASA’s next astronaut launch will delay nearly a week to let a moon mission leave Earth first.

NASA’s Crew-8 astronauts, who will launch on a SpaceX Crew Dragon, will fly to space no earlier than Feb. 28. The delay from Feb. 22 will make room for the expected launch of Intuitive Machines’ moon lander from the same launch pad at NASA’s Kennedy Space Center in Florida.

Odysseus, a robotic lunar lander built by the Houston-based company Intuitive Machines, lifted off atop a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center (KSC) in Florida early in the morning on Thursday, Feb. 15.

If all goes according to plan, Odysseus (designated IM-1) will touch down near the moon’s south pole on Feb. 22, becoming the first-ever private spacecraft to ace a lunar landing. Success would also be a big deal for the United States, which hasn’t been to the lunar surface since NASA’s Apollo 17 mission more than half a century ago.

“NASA and SpaceX will continue to assess Crew-8 readiness and may adjust the Crew-8 launch date following a successful IM-1 launch,” agency officials wrote in a statement on Feb. 13, while announcing the delay. The astronaut mission will serve as relief for Crew-7, which flew to space on Aug. 26 for an International Space Station mission expected to last six or seven months.

SpaceX Crew-8 crew. From left to right: Roscosmos cosmonaut Alexander Grebenkin, NASA astronaut Michael Barratt, KD5MIJ, NASA astronaut Matthew Dominick, KCØTOR, and NASA astronaut Jeanette Epps, KF5QNU.

Crew-8 includes NASA astronauts Matthew Dominick, KCØTOR (commander), Michael Barratt, KD5MIJ (pilot), and Jeanette Epps, KF5QNU (mission specialist), along with Roscosmos cosmonaut and mission specialist Alexander Grebenkin.

Both the ISS crew and the IM-1 launch are using a pad SpaceX leases at NASA’s Kennedy Space Center. The moon mission has a fairly narrow launch window as the IM-1 lander needs specific landing conditions to land at the lunar south pole, which is part of why the launch date for Crew-8 may be adjusted.

Crew-8, as the name implies, is the eighth crewed operational mission by SpaceX that sends commercial crews to the ISS on NASA’s behalf. Starliner, the second vendor, may fly its first test crew in mid-April 2024.

[ANS thanks Space.com for the above information.]

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Upcoming Rideshare Launch to Include Amateur Payloads

The SpaceX F9 Transporter-10 Rideshare mission has been scheduled for launch on 1 March 2024. In addition to a half dozen commercial payloads, two amateur satellites are on the launch manifest: SONATE-2 from Germany and CroCube from Croatia.

SONATE-2

SONATE-2 is a 6U+ CubeSat designed and built by the University of Wuerzburg in Germany. As for many university satellites, the mission objectives of the SONATE-2 satellite can be divided into three different parts:
– The operation of an amateur radio payload
– The development and operation of the satellite for the education of students.
– The operation of a novel payload as a technology demonstration in space.

The amateur payload of SONATE-2 consists of a VHF transceiver that was already built for the predecessor mission SONATE over the course of several student theses. For SONATE-2 additional student theses extended the transceiver functionalities. It will provide regular SSTV downlinks with images from the optical sensors included in the AI payload as well as an APRS digipeater and CW beacon.

On the education side, the mission will serve as a foundation for different aspects of the university aerospace and computer science engineering program. In the context of practical courses, theses or as student assistants, students can participate in the development of all subsystems of the space and ground segment, including the amateur radio payload and the technology demonstration payload. In the context of mandatory lectures and exercises on space operations every student will also be included in the operations of the satellite. The German Aerospace Center (DLR) offers a School Lab for high school students at the location of our external ground station in Neustrelitz, Germany.

Besides experiments on space and satellites, the School Lab includes amateur radio contacts to the ISS under the supervision of licensed local radio amateurs, which they wish to extend to other satellites like in this cooperation with the SONATE-2 mission.

In addition to the amateur and educational mission parts, the SONATE-2 mission also has a research objective for the demonstration of novel artificial intelligence technology in the space environments. While the AI payload is mainly operated using a separate up/downlink in the space operation service in S-band, the satellite bus and the amateur payloads are operated in the amateur service. Housekeeping telemetry in the amateur service also contains status information of the non-amateur payload.

Proposing CW, SSTV using Martin M1 and APRS downlinks on VHF and a 9k6 G3RUH AX25 telemetry downlink on UHF. Planning a launch into a 550 km Sun-Synchronous Orbit (SSO). More info at https://go.uniwue.de/hk. Downlinks on 437.025 MHz, 145.825 MHz, 145.840 MHz and 145.880 MHz have been coordinated by the International Amateur Radio Union (IARU).

CroCube

CroCube is a 1U CubeSat mission to support the Croatian, but also worldwide amateur radio community with many HAM services and activities. The mission’s goal is also to facilitate the technological development of Croatia, create an advanced society focused on prosperity and innovation, and increase participation in the global space sector. Also, drive Croatia into the space era, increase interest in astronomy and space projects, and develop STEM and tech entrepreneurship, create a platform for founding a space center in Croatia, increase investments and employment in robotics, technology and ICT and finally reduce unemployment and prevent brain drain.

The CroCube satellite is designed for HAM radio activities. The main purpose is to provide services for radio amateurs in Croatia and worldwide, and also for students of technical universities to get hands-on experience with satellite communication and get radioamateur licences. One of the project goals is to popularize HAM activities across the common population, students and children in Croatia.

CroCube will provide these HAM services:
– AX.25 telemetry
– CW beacon
– Digipeater
– Anniversary/special occasions AX.25 & CW messages for community engagement
– Experimental SSDV transmissions
– SATNOGS integration, decoder, dashboard

Proposing a UHF downlink using 9k6 G3RUH GFSK with AX25 telemetry. Planning an Exolaunch deployment into a 510 km SSO. More info at https://drustvo-evo.hr . A downlink on 436.775 MHz has been coordinated by IARU.

[ANS thanks Libre Space, Jan van Gils, PE0SAT, and IARU for the above information]

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Bill Introduced to Eliminate Private Land Use Restrictions on Amateur Radio

U.S. Senators Roger Wicker (MS) and Richard Blumenthal (CT) introduced S.3690 on January 30, 2024, the Senate companion bill to H.R.4006, introduced last June. Both bills reflect the Congressional campaign efforts by ARRL to eliminate homeowner association land use restrictions that prohibit, restrict, or impair the ability of an Amateur Radio Operator to install and operate amateur station antennas on residential properties they own.

Amateur Radio Operators repeatedly are relied upon to provide essential communications when disaster strikes, but their ability to do so is being impaired by the exponential growth of residential private land use restrictions that hinder their ability to establish stations in their homes with which to train and provide emergency communications when called upon.

In announcing the introduction of S.3690, Senator Wicker said: “Because communication during natural disasters is often hindered, we should be making every attempt to give folks more options. Reliable access can make the difference between life and death in an emergency. Our legislation removes roadblocks for amateur radio operators looking to help their friends, families, and neighbors.”

In a similar announcement, Senator Blumenthal stated: “Our measure will help clarify the rules so ham radio enthusiasts can successfully continue their communications.

In the face of emergency or crisis, they help provide vital, life-saving information that allow listeners to properly and safely respond, but prohibitive home association rules and confusing approval processes for installing antennas have been an unnecessary impediment. The Amateur Radio Emergency Preparedness Act resolves these bottlenecks and ensures that radio operators can function successfully.”

ARRL President Rick Roderick, K5UR, and Director John Robert Stratton, N5AUS, Chair of the ARRL’s Government Affairs Committee, both extended on behalf of ARRL, its Members, and the Amateur Radio community their thanks and appreciation for the leadership of Senator Wicker and Senator Blumenthal in their continuing efforts to support and protect the rights of all Amateur Radio Operators.

[ANS thanks ARRL News for the above information]

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Small Launch Companies Seek Niches to Compete With SpaceX Rideshare

Small launch vehicle developers are working to carve out niches in a market for smallsat launches that is increasingly dominated by SpaceX’s Transporter rideshare missions.

The Transporter missions, which fill a Falcon 9 often with more than 100 smallsats, offer per-kilogram prices significantly below dedicated small launch vehicles. SpaceX has seen high demand for those missions and announced plans last year for a related line of missions called Bandwagon that will go to mid-inclination orbits.

“The Transporter program was created a few years ago with, in my opinion, the sole purpose of trying to kill new entrants like us,” said Sandy Tirtey, director of global commercial launch services at Rocket Lab, during a panel at the SmallSat Symposium in Mountain View, Calif. on Feb. 7. “Yet, we are still flying because we offer something unique.”

That uniqueness, he argued, is the ability to fly missions to specific orbits not served by Transporter rideshare missions. An example is Rocket Lab’s next Electron launch, which will place into orbit the ADRAS-J inspector satellite for Astroscale. That mission requires a specific, precise orbit so that ADRAS-J can rendezvous with a derelict Japanese upper stage.

A Rocket Lab Electron launched four smallsats for NorthStar Earth and Space Jan. 31. Credit: Rocket Lab

“Electron is really the only vehicle capable of delivering such a complex mission on an expedited timeline,” Peter Beck, chief executive of Rocket Lab, said in a Feb. 7 statement about the launch, scheduled for Feb. 19 (New Zealand time). Rocket Lab said the specific launch time will be determined just a day before launch, with a near-instantaneous launch window.

“Most of the missions that we fly are enabled by the fact that we offer dedicated services,” Tirtey said, citing the upcoming ADRAS-J launch. “There is no way you could do this on a rideshare.”

Other panelists said they are targeting customers with specific requirements or needs that make them less price-sensitive than those who opt for the less expensive Transporter launches. That includes dedicated orbits and high reliability, said Pablo Gallego, senior vice president of sales and customers at Spanish launch company PLD Space. “We are offering a premium service for the ones that are willing to pay.”

That argument, though, is in danger of being undercut by the combination of rideshare launches and orbital transfer vehicles (OTVs), which can take satellites to their desired orbit after being deployed from a Transporter or similar launch. Several companies are offering such vehicles and using them on Transporter launches.

While that combination may still be less expensive than dedicated launches, it still doesn’t offer sufficient flexibility, launch providers argued. “We are excited to partner with a lot of OTV providers in providing that service to our customers, but it comes down to performance and how quickly you can get there,” said Robert Sproles, chief technology officer of launch services company Exolaunch. “If it takes you multiple months on orbit to get to that final destination, there’s a strong argument to be made to going dedicated.”

Tirtey said that maneuvers that require plane changes can take months to complete, adding that current OTV providers have yet to demonstrate the ability to perform such complex maneuvers. “It could be useful, but you can’t expect a revolution because of physics.”

However, on another panel at the conference Feb. 6, industry officials said they see challenges for small launch vehicles coming from SpaceX’s Starship, which promises much greater performance at significantly lower prices. “If you’re a smallsat company, your business model should be looking forward to the model of the Starship rideshare,” a scaled-up version of Falcon 9 rideshare, said Abhishek Tripathi, director of mission operations at the University of California Berkeley’s Space Sciences Lab and who previously worked at SpaceX.

He said that the introduction of Starship could change how spacecraft are designed, allowing the use of heavier but cheaper materials and components. “You can throw mass and power and volume at your problem and thereby scale up your satellite bus and still be cheap.”

[ANS thanks SpaceNews for the above information]

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Changes to AMSAT-NA TLE Distribution for February 16

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/.

• Lume-1 NORAD Cat ID 43908 Decayed from orbit on or about 13 February 2024
• FEES NORAD Cat ID 48082 Decayed from orbit on or about 12 February 2024

[ANS thanks AMSAT Orbital Elements page 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.

COMPLETED CONTACTS
School TBD, Naro-Fominsk, Russia, direct via UB3AYC
The ISS callsign was RSØISS
The crewmember was Nikolay Chub
The ARISS mentor was RV3DR
Contact was successful for Thu 2024-02-15 08:22 UTC
Congratulations to the Naro-Fominsk students, Nikolay, and mentor RV3DR!

B. Russell High School, Rome, Italy, direct via IKØUSO
The ISS callsign was OR4ISS
The crewmember was Jasmin Moghbeli KI5WSL
The ARISS mentor was IKØUSO
Contact was successful: Thu 2024-02-15 11:32:10 UTC 54 deg
Congratulations to the B. Russell High School students, Jasmin, and mentor IKØUSO!
Watch for Livestream at https://www.youtube.com/watch?v=R0YEgMvzbn8

Immanuel Kant Baltic Federal University, Kaliningrad, Russia, direct via R2FDB
The ISS callsign was to be RSØISS
The crewmember was Konstantin Borisov
The ARISS mentor was RV3DR
Contact was successful for: Fri 2024-02-16 09:10 UTC
Congratulations to the Immanuel Kant Baltic Federal University students, Konstantin, and mentor RV3DR!

SCHEDULED CONTACTS
Girl Scout Troop 1089, Sacramento, CA, direct via N6NA
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Loral O’Hara KI5TOM
The ARISS mentor is AA4KN
Contact is go for: Thu 2024-02-22 18:26:02 UTC 89 deg

The crossband repeater continues to be active (145.990 MHz up {PL 67} & 437.800 MHz down). If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know.

The packet system is also active (145.825 MHz up & down).

As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol.

Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time.

The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html

The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html

[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors for the above information]

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Upcoming Satellite Operations

Jonathan Eernisse, N4AKV has been QRV from FM05/FM06 and FM15/FM16 this week. Both LEO and IO-117. Details available on hams.at

A growing number of satellite rovers are currently engaged in sharing their grid square activations on https://hams.at. By visiting the website, you gain easy access to comprehensive information about the operators responsible for activating specific grid squares. Additionally, you have the ability to assess the match score between yourself and a particular rover for a given pass, while also being able to identify the upcoming satellite passes that are accessible from your location.

[ANS thanks Ian Parsons, K5ZM, AMSAT rover page manager, for the above information]

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Hamfests, Conventions, Maker Faires, and Other Events

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

+ 40th Anniversary Celebration of the Positive Impact of Amateur Radio on Human Spaceflight
Thursday February 22nd through Saturday February 24th, 2024
Center for Space Education: Astronauts Memorial Foundation
Kennedy Space Center, M6-306 405 State Road, FL 32899
https://www.ariss.org/overview.html

+ Dayton Hamvention 2024
Friday May 17th through Sunday May 19th, 2024
Greene County Fairgrounds and Expo Center
120 Fairground Road
Xenia, OH 45385
https://hamvention.org

[ANS thanks the AMSAT Events page for the above information]

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Satellite Shorts From All Over

+ The JAMSAT Annual General Meeting and Symposium 2024 will be held in Sagano, Kyoto on 23-24 March 2024. To join the Symposium by ZOOM, please send e-mail to Ueda-san, [email protected], with your Callsign and Name by 16 March. He will send you invitation email including Zoom URL. If you are adept at reading Japanese (or have a good translation program) the latest edition of the JAMSAT Newsletter is packed with excellent articles, including a full report of satellite operations by the JAMSAT VK9QO DXpedition to Cocos (Keeling) Island, amateur transmissions from the moon by the SLIM LEV-1/LEV-2 landers, and a how-to on restoring a Yaesu G-5500 rotator. Visit the JAMSAT website at https://www.jamsat.or.jp/ to learn more. (ANS thanks Mikio Mouri, JA3GEP, JAMSAT Newsletter Editor, for the above information.)

+ An unspecified defect in early model Starlink satellites has prompted SpaceX to preemptively deorbit the units before they potentially fail and become hazards in low Earth orbit. The company has already initiated the disposal of 406 units from the nearly 6,000 satellites launched to date. Among these, 17 are currently non-maneuverable but are expected to naturally decay and eventually burn up in Earth’s atmosphere in the coming years. However, the decision to deorbit a large batch of approximately 100 satellites within a brief amount of time is certainly out of the ordinary. (ANS thanks Gismodo for the above information.)

+ The European Space Agency’s Cluster mission, which has spent 24 years revealing the secrets of Earth’s magnetic environment, is coming to an end. The first of the four satellites in the Cluster quartet, named ‘Salsa’, will reenter Earth’s atmosphere in September 2024. This month, spacecraft operators carried out a series of manoeuvres to ensure this reentry will take place over a sparsely populated region in the South Pacific. The end of the Cluster mission offers a rare chance to study the safe atmospheric reentry of four identical satellites under different conditions. (ANS thanks The European Space Agency for the above information.)

+ Copernicus, the Earth observation component of the European Union’s Space programme, has confirmed that January 2024 was the warmest January on record. Samantha Burgess, Deputy Director of the Copernicus Climate Change Service (C3S) said: “2024 starts with another record-breaking month – not only is it the warmest January on record but we have also just experienced a 12-month period [with a mean global average temperature] more than 1.5°C above the pre-industrial reference period. Rapid reductions in greenhouse gas emissions are the only way to stop global temperatures increasing.” (ANS thanks https://climate.copernicus.eu for the above information.)

+ Voyager 1, humanity’s most distant scientific outpost, is currently careening away from Earth at 17 kilometers every second and unable to transmit useful scientific or engineering data back to us across nearly a light-day of space. The problem with the 46-year-old spacecraft cropped up back in November, when Voyager started sending gibberish back to Earth. Flight controllers have determined that the problem lies within the one remaining flight data system (FDS) computer on board, most likely thanks to a single bit of corrupted memory. The team has tried rebooting the FDS, to no avail. With most of the engineers who originally built the spacecraft long gone now, the team is treading very carefully. (ANS thanks Hackaday for the above information.)

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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.
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* 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
k0jm [at] amsat.org

In this edition:

* ESA Satellite Communications Group Explores Future Amateur Satellite Payload
* GreenCube IO-117 Continues Operations Beyond Expected February 5th Passivation
* JS1YMG: Decoding the First Moon-Based Ham Radio Station’s Telemetry Signals
* GridMasterMap Satellite Top 100 Rovers February 2024 Rankings
* Changes to AMSAT-NA TLE Distribution for February 9, 2024
* ARISS News
* Upcoming Satellite Operations
* Hamfests, Conventions, Maker Faires, and Other Events
* 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

ANS-042 AMSAT News Service Weekly Bulletins

To: All RADIO AMATEURS
From: Radio Amateur Satellite Corporation
712 H Street NE, Suite 1653
Washington, DC 20002

DATE 2024 Feb 11

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ESA Satellite Communications Group Explores Future Amateur Satellite Payload

Frank Zeppenfeldt, PDØAP, representing the European Space Agency (ESA), provided key insights during a presentation on February 4th at the FOSDEM 2024 conference held in Brussels, Belgium. The discussion centered around ESA’s initiative to collaborate with the amateur satellite community in defining a prospective payload for Medium Earth Orbit (MEO) or Geostationary Orbit (GEO). The ESA’s involvement aims to build upon the success of the QO-100 payload in geostationary orbit, fostering innovation and technological advancements.

During the FOSDEM conference, the ESA Satellite Communications Group outlined preliminary ideas, stressing the significance of engaging with the Software-Defined Radio (SDR) community. The primary objectives include consolidating requirements, exploring diverse payload options, addressing user segments, and thoroughly examining financing, procurement, and operational scenarios for a potential MEO/GEO amateur payload.

The project’s scope encompasses the consideration of various payload options and trade-offs, encompassing aspects such as frequency bands, analog or digital transmission, on-board SDR/Linux/GPU-box configurations, potential applications, technical risks, inter-satellite links, geographical coverage, degree of centralization, and educational components.

To ensure a comprehensive and well-informed approach, the ESA plans to actively involve the amateur community. This engagement seeks to gather valuable input on lessons learned from the QO-100 experience, amateur requirements and interests, as well as suggestions for payload options. The consultation process extends to reaching out to AMSAT and other relevant groups, alongside dialogues with satellite operators, primes, and various stakeholders.

Looking ahead, the ESA has outlined a timeline for the project. In March 2024, the agency intends to solicit input from the amateur satellite community and other stakeholders, guided by valuable insights from the AMSAT community. By May 2024, detailed payload options will be presented for discussion at the European Space Research and Technology Centre (ESTEC) in the Netherlands, with the support of technical expertise.

More information from this presentation including the ten page Slide Deck can be found https://fosdem.org/2024/schedule/event/fosdem-2024-2084-design-of-a-follow-up-qo-100-payload-/.

The culmination of this extensive process is expected in September 2024 at the World Satellite Business Week, where dedicated discussions with satellite operators will be organized. The ESA envisions proposing a selection of payload options at a subsequent FOSDEM conference in 2025, further demonstrating the collaborative commitment of ESA and the amateur satellite community to propel advancements in satellite communications and explore innovative possibilities for future amateur satellite payloads in both GEO and MEO orbits.

[ANS thanks Frank Zeppenfeldt, PDØAP, ESA Satellite Communications Group, for the above information]

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GreenCube IO-117 Continues Operations Beyond Expected February 5th Passivation

GreenCube IO-117 satellite continues to function beyond the initially scheduled shutdown of the amateur radio digipeater on February 5, 2024, at 0000 UTC. There have been no recent developments regarding the fate of this widely-used satellite since AMSAT Italia’s announcement on February 2nd that the Italian Space Agency is considering revisiting the decision to decommission it. Originally designed for scientific purposes and placed in MEO orbit, GreenCube satellite has successfully completed its primary mission. The “Save the GreenCube Satellite Digipeater” petition initiated by Peter Goodhall, 2MØSQL, has gained significant traction, garnering over 2,000 signatures to date. The petition, accessible at https://www.change.org/p/save-the-greencube-satellite-digipeater, remains open for further support.

The support from the amateur radio satellite community for the GreenCube IO-117 digipeater has been exceptionally robust. Carsten Groen, OZ9AAR, has introduced significant enhancements to his GreenCube Terminal in the latest Version 1.0.0.88, which can be accessed at https://moonbounce.dk/hamradio/greencube-terminal-program.html. Notable improvements encompass SatNOGS Integration, GPS Integration, “AMSAT Sheriff” Wyatt, and Live World View. The Oscarwatch GreenCube Reporter map, developed by Peter Goodhall, 2MØSQL, is available at https://oscarwatch.org/greencube, serving as a valuable resource for monitoring real-time activity on GreenCube. The recent success of the TX5S Clipperton Island DXpedition, which made numerous GreenCube digipeater contacts, can be attributed to these enhancements and the collaboration of operators adhering to the recently released IO-117 Code Of Conduct recommendations.

To get a comprehensive view of the considerable amateur radio activity on the GreenCube digipeater, you can explore the GreenCube IO-117 Users Map curated by Doug Papay, K8DP, accessible at https://www.google.com/maps/d/viewer?mid=1Y7O-rWll2QHFTjbBa4ThmZ3AG9ls8Io. According to the latest update, GreenCube has facilitated digipeating for 1,576 unique callsigns and 999 unique grids. This encompasses digipeats from 121 DXCC entities, all 50 US states, all 47 JA prefectures, and 36 out of 40 CQ Zones. Since its launch in July 2022, 846 ground stations have contributed over 3.4 million telemetry and 6.2 million digipeater frames to the SatNOGS database. The top five contributors to the database, in terms of total submissions, are Doug Papay, K8DP, with 1.1M submissions; Dave Webb, KB1PVH, with 734k submissions; Dave Fisher, KGØD, with 576k submissions; Shige Nasu, JH8FIH, with 507k submissions; and Jacob Mol III, N8JCM, with 498k submissions.

GreenCube IO-117 exemplifies the strong backing the amateur radio satellite community extends to satellite missions incorporating telemetry data alongside communication opportunities for radio amateurs. The forthcoming challenge for satellite missions lies in soliciting input from the amateur radio satellite community and ensuring tools are available prior to launch. Leveraging its unique orbit and capabilities, GreenCube has enabled many to attain challenging awards on satellites, such as ARRL DXCC, ARRL Worked All States (WAS), and the JARL Worked All Japan Prefectures Award (WAJA). AMSAT, alongside thousands of amateur radio operators, remains steadfast in their support for the GreenCube mission, with hopes for its sustained success in the future.

[ANS thanks Doug Papay, K8DP, Peter Goodhall, 2MØSQL, and Carsten Groen, OZ9AAR for the above information]

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JS1YMG: Decoding the First Moon-Based Ham Radio Station’s Telemetry Signals

JQ1ZVI (JAXA Ham Radio Club, JHRC) recently obtained a radio station license from Japan for the lunar rover LEV-1, designated JS1YMG, marking a historic moment as the first amateur radio station on the moon. This milestone achievement follows Japan’s SLIM lunar mission, which saw the deployment of two lunar excursion vehicles, LEV-1 and LEV-2.

LEV-1, designed for hopping mobility, features direct-to-Earth communication capabilities via UHF band antennas from the MINERVA and OMOTENASHI projects. Equipped with two wide-angle visible light cameras, LEV-1 conducts lunar exploration while carrying essential science payloads, including a thermometer, radiation monitor, and inclinometer, providing valuable insights into lunar conditions and terrain. It actively receives data from its companion rover LEV-2, and this information is transmitted to Earth using its 1 Watt UHF circular polarization antenna, employing Morse code on a IARU coordinated frequency of 437.410 MHz.

Decoding efforts by Daniel Estévez, EA4GPZ, and others have shed light on the telemetry data transmitted by LEV-1. Utilizing captures from the 25-meter radio telescope at Dwingeloo in the Netherlands, Estévez identified the telemetry format as PCM/PSK/PM with a symbol rate of 64 baud and a 2048 kHz subcarrier. The residual carrier is modulated in amplitude with Morse code, introducing an unusual element to the signal. Despite challenges posed by amplitude shift keying in the signal, a phase-locked loop (PLL) has proven effective in tracking the phase of the residual carrier.

Estévez’s decoding journey involved unraveling the CCSDS coding, a task that posed initial challenges. While the IARU coordination sheet hinted at bitrates and coding specifics, the signal’s unique characteristics required a thorough investigation. The BCJR decoder, a tool used successfully in previous decoding efforts, validated the presence of convolutional coding. The output provided log-likelihood ratios, offering confidence in the correctness of the convolutional code. Further investigations led to the identification of the syncword 0xFAF320, a crucial element in understanding the structure of the transmitted frames.

One intriguing aspect of the decoded data is the Morse code modulating the residual carrier in amplitude. Despite initial confusion caused by an inverted amplitude representation, subsequent analysis revealed recognizable Morse code sequences. The meaning behind these Morse code transmissions remains a mystery, inviting collaboration from the broader radio amateur community and the LEV-1 team. As decoding efforts continue, the telemetry data’s contents remain unknown, emphasizing the need for more documentation from the LEV-1 team. The spacecraft’s utilization of the amateur satellite service and its completion of the IARU coordination process suggest that technical documentation may become publicly available in the future.

More details on the ongoing efforts to decode LEV-1’s amateur radio transmissions can be found at Daniel Estévez’s website at https://destevez.net/2024/01/trying-to-decode-lev-1/.

This achievement in establishing the first amateur radio station on the Moon opens up new possibilities for lunar communications and amateur radio enthusiasts worldwide. The collaborative efforts of radio amateurs contribute significantly pave the way for future advancements in space communication technologies.

[ANS thanks Daniel Estévez, EA4GPZ, and Hackaday for the above information]

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GridMasterMap Satellite Top 100 Rovers February 2024 Rankings

The February 2024 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: 2024-02-07

1	ND9M	26	K8BL	51	F4DXV	76	DF2ET
2	NJ7H	27	KE4AL	52	KE9AJ	77	WA9JBQ
3	N5UC	28	LU5ILA	53	JL3RNZ	78	W8LR
4	JA9KRO	29	DL2GRC	54	KM4LAO	79	OE3SEU
5	DL6AP	30	KI7UNJ	55	VE1CWJ	80	VE3GOP
6	WI7P	31	VE3HLS	56	PA3GAN	81	KJ7NDY
7	UT1FG	32	KB5FHK	57	VK5DG	82	KB2YSI
8	HA3FOK	33	LA9XGA	58	N4UFO	83	K0FFY
9	N9IP	34	N7AGF	59	KI7QEK	84	CU2ZG
10	N6UA	35	F4BKV	60	SM3NRY	85	N0TEL
11	WY7AA	36	XE3DX	61	N8RO	86	DL4EA
12	K5ZM	37	N6DNM	62	PT2AP	87	W8MTB
13	AD0DX	38	KE0PBR	63	W1AW	88	KG4AKV
14	W5PFG	39	KE0WPA	64	VA7LM	89	VE6WK
15	DP0POL	40	JO2ASQ	65	XE1ET	90	VE7PTN
16	AK8CW	41	PR8KW	66	AA8CH	91	HB9GWJ
17	AD0HJ	42	AC0RA	67	M1DDD	92	AF5CC
18	WD9EWK	43	K7TAB	68	VA3VGR	93	DK9JC
19	ON4AUC	44	W7WGC	69	VE1VOX	94	PT9ST
20	KG5CCI	45	EB1AO	70	FG8OJ	95	JM1CAX
21	KX9X	46	JK2XXK	71	PT9BM	96	KI0KB
22	ND0C	47	EA4NF	72	KI7UXT	97	VO2AC
23	N5BO	48	AA5PK	73	LU4JVE	98	LW2DAF
24	F5VMJ	49	SP5XSD	74	YU0W	99	N4AKV
25	DJ8MS	50	AD7DB	75	N4DCW	100	N6UTC

[ANS thanks @GridMasterMap for the above information]

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Changes to AMSAT-NA TLE Distribution for February 9, 2024

Two Line Elements or TLEs, often referred to as Keplerian elements or keps in the amateur community, are the inputs to the SGP4 standard mathematical model of spacecraft orbits used by most amateur tracking programs. Weekly updates are completely adequate for most amateur satellites. Elements in the TLE bulletin files are updated daily. TLE bulletin files are updated to add or remove satellites as necessary Thursday evenings around 2300 UTC, or more frequently if new high interest satellites are launched. More information may be found at https://www.amsat.org/keplerian-elements-resources.

AO-92 NORAD Cat ID 43137 Decayed from orbit on or about 02 February 2024
NO-116 NORAD Cat ID 51031 Decayed from orbit on or about 04 February 2024

Editor’s Note: Thanks AO-92 for all the contacts, memories, and friends that you provided us! Miss you Veronica 🙁

[ANS thanks AMSAT Orbital Elements page 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.

+ Recently Completed

Lilburn Elementary School, Lilburn, GA, direct via K4RGK
The ISS callsign was NA1SS
The crewmember was Jasmin Moghbeli KI5WSL
The ARISS mentor was K4RGK
Contact was successful: Wed 2024-02-07 14:24:10 UTC
Congratulations to the Lilburn Elementary School students, Jasmin, and mentor K4RGK!
Watch the event here: https://www.youtube.com/watch?v=hlwg2rof0LA

School of Telecommunications Engineering, ETSIT Valencia (Universitat Politecnica de Valencia), Valencia, Spain, direct via EA5RKP
The ISS callsign was OR4ISS
The crewmember was Loral O’Hara KI5TOM
The ARISS mentor was IKØUSO
Contact was successful: Fri 2024-02-09 08:12:46 UTC
Congratulations to the ETSIT Valencia students, Loral, and mentor EA5RKP!
Watch for Livestream at https://www.youtube.com/watch?v=_IMdKcM2Fw8

+ Upcoming Contacts

School TBD, Russia, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Nikolay Chub
The ARISS mentor is RV3DR
Contact is go for 2024-02-15 08:20 UTC

B. Russell High School, Rome, Italy, direct via IKØUSO)
The ISS callsign is presently scheduled to be OR4ISS
The scheduled crewmember is Jasmin Moghbeli KI5WSL
The ARISS mentor is IKØWGF
Contact is go for: Thu 2024-02-15 11:32:10 UTC

Baltic Federal University. I. Kanta, Kaliningrad, Russia, direct via TBD
The ISS callsign is presently scheduled to be RSØISS
The scheduled crewmember is Konstantin Borisov
The ARISS mentor is RV3DR
Contact is go for Fri 2024-02-16 09:10 UTC

The Service Module radio is temporarily stowed.

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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Upcoming Satellite Operations

From Jonathan N4AKV: Next week I am hoping to head to a few of the FM grids, namely FM05, 06, 15, 16, 25, and 26. Plans and dates not finalized yet but will post here and on http://hams.at as usual when I figure them out. Hopefully GC will remain active.

A growing number of satellite rovers are currently engaged in sharing their grid square activations on https://hams.at. By visiting the website, you gain easy access to comprehensive information about the operators responsible for activating specific grid squares. Additionally, you have the ability to assess the match score between yourself and a particular rover for a given pass, while also being able to identify the upcoming satellite passes that are accessible from your location.

[ANS thanks Ian Parsons, K5ZM, AMSAT Rover Page Manager, for the above information]

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Hamfests, Conventions, Maker Faires, and Other Events

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

40th Anniversary Celebration of the Positive Impact of Amateur Radio on Human Spaceflight
Thursday February 22nd through Saturday February 24th, 2024
Center for Space Education: Astronauts Memorial Foundation
Kennedy Space Center, M6-306 405 State Road, FL 32899
https://www.ariss.org/overview.html

2024 CubeSat Developer’s Workshop
April 23-25, 2024
San Luis Obispo, CA
https://www.cubesatdw.org/

Dayton Hamvention 2024
Friday May 17th through Sunday May 19th, 2024
Greene County Fairgrounds and Expo Center
120 Fairground Road
Xenia, OH 45385
https://hamvention.org

AMSAT Ambassador Clint Bradford, K6LCS, says,

Had a marvelous time last night with the South Pasadena (CA) ARC. BUT –
I might have to “tighten up” my trivia questions throughout: They knew the
answers IMMEDIATELY to all of them!!!

Twenty-one members joined via Zoom. The rainstorms here made Zoom-ing the
best-available option for the show.

Next up: Bellingham WA, Orange County CA, and Brea CA!

Think a lively and informative 75-minute presentation on “working the easy
satellites” would be appropriate for your event or club? Just let us know!

Clint Bradford K6LCS
[email protected]
909-999-SATS (7287)

[ANS thanks the AMSAT Events page 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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Satellite Shorts From All Over

+ The SpaceX Crew Dragon spacecraft Freedom successfully concluded its three-week private astronaut mission to the International Space Station (ISS) by splashing down off the Florida coast on February 9th. Commanded by former NASA astronaut Michael López-Alegría, KE5GTK, the Ax-3 mission lifted off on January 18 and included pilot Walter Villadei, IUØRWB, along with mission specialists Alper Gezeravcı, KJ5DIY, and Marcus Wandt, KJ5COO, who represented the European Space Agency. Despite a nearly week-long extension due to poor weather, the spacecraft’s reentry and descent went according to plan, marking Axiom Space’s third private astronaut mission to the ISS. This mission served as a precursor to Axiom’s installation of commercial modules on the ISS, which will form the basis of a future standalone space station. Additionally, SpaceX announced plans for five or six crewed missions in 2024, including Ax-4 and NASA’s Crew-8 and Crew-9 missions, while the Polaris Dawn mission, led by billionaire Jared Isaacman, is expected to launch in the summer for a historic Crew Dragon spacewalk. (ANS thanks Jeff Foust, SpaceNews, for the above information)

+ NASA’s PACE satellite, aimed at studying ocean health, air quality, and climate change effects, was successfully launched into orbit at 1:33 a.m. EST on February 8th aboard a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station in Florida. Signal acquisition was confirmed five minutes post-launch, with the satellite performing as anticipated. With instruments to study microscopic life in oceans and particles in the atmosphere, PACE aims to uncover crucial factors affecting global warming, aligning with the Biden-Harris Administration’s climate agenda. The satellite’s capabilities include tracking phytoplankton distribution globally and monitoring atmospheric aerosols and cloud properties. PACE’s data will significantly advance understanding of the Earth system, particularly in relation to climate change impacts on oceans and phytoplankton dynamics, offering valuable insights for coastal communities and industries. (ANS thanks NASA for the above information)

+ NASA is preparing for the launch of Intuitive Machines’ first lunar lander, Nova-C, as part of the CLPS initiative and Artemis campaign. The launch is scheduled for no earlier than 12:57 a.m. on February 14 from Kennedy Space Center in Florida. The Nova-C lander is expected to land on the Moon on February 22, carrying NASA science and technology instruments for various purposes. Live launch coverage will be available on NASA+, NASA Television, the NASA app, and the agency’s website, starting from February 12. The payload includes instruments focusing on plume-surface interactions, space weather/lunar surface interactions, radio astronomy, precision landing technologies, and communication/navigation for autonomous navigation technologies. NASA’s virtual guest program allows the public to attend the launch virtually, and social media engagement is encouraged with the hashtag #Artemis. The CLPS initiative aims to deliver science and technology to the lunar surface through partnerships with U.S. companies, with a cumulative maximum contract value of $2.6 billion through 2028. (ANS thanks NASA for the above information)

+ Virgin Galactic has temporarily halted its operations after a small part, an alignment pin, unintentionally detached from the mothership of its rocket-powered space plane during the Galactic 06 space tourism flight on January 26. The company assured that the part’s loss did not compromise the mission’s safety. The alignment pin is crucial for pre-flight procedures, ensuring the spaceship aligns with the mothership. Virgin Galactic discovered the issue during routine checks and promptly notified government regulators on January 31. The Federal Aviation Administration (FAA) will conduct a mishap investigation, requiring Virgin Galactic’s final report and corrective actions approval before resuming flights. The alignment pin’s absence did not affect the safety of the successful Galactic 06 mission, and the company plans to provide further updates after the FAA review for the upcoming Galactic 07 mission in the second quarter of 2024. (ANS thanks Jackie Wattles, CNN, for the above information)

+ Ongoing efforts persist in the bid to resolve the critical computer glitch affecting NASA’s Voyager 1, the most distant human-made object in space, which has disrupted telemetry data transmission since November 14. The glitch, impacting the Flight Data Subsystem (FDS) developed five decades ago, has prevented access to vital information regarding the spacecraft’s propulsion, power, and control systems. Suzanne Dodd, the Voyager project manager, acknowledges the severity of the situation, emphasizing the urgency of addressing the issue due to Voyager 1’s age and declining nuclear battery power. A dedicated team of experts is actively crafting a plan to transmit commands aimed at isolating and potentially correcting the corrupted FDS memory. The unique challenge lies in the absence of simulators for testing commands, making decision-making a complex process requiring a delicate balance between thorough analysis and prompt action. Despite the intricate troubleshooting process, NASA remains resolute in its commitment to resolving the issue and ensuring the continued success of the historic Voyager 1 mission. (ANS thanks Stephen Clark, Ars Technica, 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, Mitch Ahrenstorff, ADØHJ
ad0hj [at] amsat.org