ANS-186 AMSAT News Service Weekly Bulletins

AMSAT News Service

ANS-186
July 5, 2026

In this edition:

  • AMSAT President Drew Glasbrenner, KO4MA, Featured on Ham Radio Workbench Podcast
  • MarmotSat: Student-Built Canadian CubeSat Brings Open-Source Amateur Experiments to VHF and 10 Meters
  • OSCARLOCATOR Web Generator Turns Live Elements Into Printable Tracking Sheets
  • Recent IARU Amateur Satellite Frequency Coordination Activity
  • Amateur Radio Payloads Aboard SpaceX Transporter-17
  • AMSAT at Moon Day, Dallas – Saturday, July 18, 2026
  • Changes to AMSAT TLE Distribution for June 5, 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/


AMSAT President Drew Glasbrenner, KO4MA, Featured on Ham Radio Workbench Podcast

AMSAT President Drew Glasbrenner, KO4MA, is the featured guest on episode 266 of the Ham Radio Workbench podcast, released June 30, 2026, and available at https://www.hamradioworkbench.com/podcast

In a wide-ranging discussion, Glasbrenner talks with the Workbench crew about AMSAT and amateur radio in space, drawing on the operating and institutional perspective he brings as AMSAT President. The episode’s show notes point listeners toward a number of accessible on-ramps to satellite work, including the WA5VJB “Cheap Yagis” wooden-boom antenna design, Elk log-periodic antennas for satellite use, and AMSAT itself at https://www.amsat.org. The hosts also note that Glasbrenner is interested in hearing from potential payload providers, and that listeners inspired to get more involved can inquire about becoming an AMSAT Ambassador.

Recent AMSAT presentations have offered a preview of the themes Glasbrenner tends to cover. In appearances over the past several months he has described AMSAT as a volunteer, educational organization dating to 1969, highlighted the continued operation of AO-7 more than five decades after launch, and outlined the GOLF-TEE mission — a 3U CubeSat carrying a 30 kHz linear transponder, a 10 GHz high-speed experimental downlink, and improved three-axis attitude control. Listeners looking for an approachable introduction to where AMSAT is headed will find the Workbench episode a good place to start.

Give it a listen at https://www.hamradioworkbench.com/podcast.

[ANS thanks the Ham Radio Workbench podcast and Drew Glasbrenner, KO4MA, AMSAT President, for the above information]


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MarmotSat: Student-Built Canadian CubeSat Brings Open-Source Amateur Experiments to VHF and 10 Meters

A new student-built CubeSat carrying an unusually varied amateur radio payload is set to reach orbit this month, and its team is actively inviting amateurs around the world to take part. MarmotSat, a 3U CubeSat designed and built in-house by students at the University of Victoria (UVic) Centre for Aerospace Research (CfAR), is manifested on the SpaceX Transporter-17 rideshare mission, targeted to launch from Space Launch Complex 4E at Vandenberg Space Force Base, California, no earlier than July 7, 2026, into a sun-synchronous orbit.

MarmotSat, whose name stands for Mission for Atmospheric Radio Measurements with Open-source Technology Satellite, measures the standard 3U form factor of 340 by 100 by 100 mm. It is British Columbia’s submission to the Canadian Space Agency’s CubeSats Initiative in Canada for STEM (CUBICS) program, and it also features major contributions from volunteers on the UVic Satellite Design (UVSD) engineering team. The mission has two primary objectives: to train Highly Qualified Personnel by giving undergraduate and graduate students hands-on experience designing, building, testing, and operating a spacecraft; and to support the UVic Propagation Laboratory’s research into the structure and composition of the ionosphere. Both the satellite and its ground station in Victoria were designed, assembled, tested, and operated by students, with the sole exception of the commercial CubeSpace attitude determination and control system.

The mission builds directly on the experience of ORCASat, UVic’s earlier 2U CubeSat and British Columbia’s first student-built satellite to reach orbit. ORCASat, which flew under the Canadian CubeSat Project and deorbited in July 2023, gave more than 25 full-time co-op students and over 150 part-time student volunteers direct spacecraft experience, and it flight-qualified the UHF telemetry, tracking and command scheme that MarmotSat reuses.

A rich amateur payload

For amateurs, the interesting part of MarmotSat is its payload, which marks the debut of the Modular CubeSat Radio (MCR), an open-source, GNU Radio-compatible software-defined radio platform developed by the team. Built around a low-power HF SDR derived from the Hermes Lite 2, the MCR for this mission includes the SDR, an onboard computer, a camera, HF and VHF RF front ends, and simple wire antennas: a base-loaded half-wave tape-measure whip for HF and a half-wave tape-measure dipole for VHF.

The amateur payload supports four distinct experiments, and the team stresses that it is available to all properly licensed operators worldwide. Because several functions share the same frequencies, the experiments are mutually exclusive and never run simultaneously. The published frequencies are a VHF digipeater uplink and downlink on 145.875 MHz; a CW telemetry beacon on both 145.875 MHz and 29.410 MHz; and a DVB-S2 digital video beacon and a linear-frequency-modulation sounding downlink, both on 29.410 MHz in the 10-meter amateur satellite allocation. A separate telemetry, tracking and command subsystem operates on 436.125 MHz; that UHF link is kept independent of the amateur payload for reliability and is not intended for general amateur use, though its telemetry may be receivable in the Pacific Northwest.

The four amateur experiments give operators a range of ways to participate:

The CW telemetry beacon transmits spacecraft health data on HF and VHF at 15 words per minute, sending the callsign VA7UVS in plain text followed by encoded telemetry. It can be copied by ear or with digital aids such as CW Skimmer, and requires only a modest 10-meter or VHF antenna and a CW-capable receiver or a low-cost SDR.

The VHF digipeater is a two-way store-and-forward and real-time communication experiment intended to work like the well-known IO-117 (GreenCube) digipeater, but on VHF rather than UHF. The team notes it is designed to be compatible with the hardware and software amateurs already use for GreenCube operation.

The DVB-S2 digital video experiment lets amateurs receive live imagery from the onboard camera as a digital television signal on 10 meters, following the QO-100 wideband operating conventions. It is a deliberately challenging, noise-sensitive experiment; the team recommends it only for operators at quiet rural locations and only on passes above about 35 degrees elevation.

The citizen-science experiment transmits a linear-frequency-modulated waveform, similar to CODAR, on 10 meters. Amateurs can record these transionospheric soundings and submit them to a central repository, contributing to the Propagation Lab’s study of how the ionosphere’s structure may correlate with terrestrial phenomena including earthquakes and human-caused climate change.

In keeping with the mission’s open-source philosophy, the team has released supporting designs and tools to the community, including a 10-meter turnstile antenna suitable for space reception and a GNU Radio flowgraph for decoding the DVB-S2 video, with recording-format and data-submission details for the citizen-science experiment to be published around launch.

Getting involved

The MarmotSat team is inviting experienced stations to help commission the amateur experiments and is offering selected operators early access to the payload; amateurs interested in taking part are asked to contact the team through the UVic Propagation Laboratory with a brief description of their capabilities. Amateur radio information for the mission, including the frequency table, equipment recommendations, and experiment details, is maintained on the Propagation Lab’s satellite page at https://www.propagationlab.ca/satellite/, and general mission information is available at https://www.marmotsat.ca.

As always, amateurs planning to receive MarmotSat should watch for orbital elements and any updates to the experiment schedule after deployment, which the team expects to publish once commissioning is complete in the third quarter of 2026.

[ANS thanks the University of Victoria Centre for Aerospace Research, the UVic Propagation Laboratory, and the MarmotSat team for the above information]


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OSCARLOCATOR Web Generator Turns Live Elements Into Printable Tracking Sheets

Following last week’s introduction of the browser-based OSCARLOCATOR Web Simulator, a companion tool is now online that closes the loop between the on-screen simulator and the classic paper tracker. The OSCARLOCATOR Web Generator, at https://oscarlocator-pdf.n8hm.radio, produces printable base-map, range-circle, and path-arc sheets — the physical components of the traditional OSCARLOCATOR — as vector PDFs generated entirely in the browser.

Like the simulator, the generator is the work of AMSAT Executive Vice President Paul Stoetzer, N8HM, and produces the same vector output as the OSCARLOCATOR export in his OrbitDeck desktop application. Nothing is uploaded to a server: the tool fetches only current AMSAT GP orbital elements and, if the operator asks, their location. It runs offline once loaded.

The OSCARLOCATOR Web Generator, showing the station, satellite, and sheet-option controls on the left and a live preview of the base map for AO-73 on the right, along with the orbital readout and PDF download and print controls

To build a set of sheets, the operator sets a station by Maidenhead grid square, by latitude and longitude, or via browser geolocation, then selects a satellite from a list populated automatically from AMSAT’s GP element data. The map projection can be a polar azimuthal-equidistant sheet — chosen automatically for the northern or southern hemisphere, or forced to North or South — or a QTH-centered azimuthal map. The output can be produced as a two-sheet set, pairing a base map with the range circle drawn at the operator’s station plus a separate path-arc transparency, and an option keeps the overlay transparencies free of text so all the how-to-use instructions live on the base map. An advanced panel allows manual entry of orbital elements — inclination, mean motion, eccentricity, argument of perigee, and RAAN — for cases where the operator wants to plot a specific orbit by hand, and provides an optional CORS-proxy override for fetching the AMSAT bulletin data.

Coastlines are drawn from Natural Earth 110m data. The sheets must be printed at 100% / actual size so that the base map and the transparency overlays register correctly when stacked. The result is a genuine, working paper tracker keyed to current elements — a satisfying bridge between the pre-computer era of satellite operating and modern on-demand data.

The OSCARLOCATOR Web Generator is available now at https://oscarlocator-pdf.n8hm.radio, and serves as a companion to the OSCARLOCATOR Simulator at https://oscarlocator.n8hm.radio.

[ANS thanks Paul Stoetzer, N8HM, AMSAT Executive Vice President, for the above information]


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Recent IARU Amateur Satellite Frequency Coordination Activity

Every amateur satellite that expects to transmit in the amateur-satellite service bands is asked to obtain a frequency coordination from the International Amateur Radio Union (IARU) before launch. The IARU Satellite Frequency Coordination Panel reviews each request, checks the proposed frequencies against existing band plans and other coordinated missions, and — where the mission fits the definition of the amateur-satellite service and names a licensed amateur as the responsible operator — recommends frequencies intended to minimize mutual interference. The running status of applications is maintained on the AMSAT-UK-hosted status pages at https://iaru.amsat-uk.org/index.php, and it is worth a periodic look for operators who like to know what may be arriving on the bands.

Over roughly the past month the panel’s public status list has continued to turn over, with the two most recently updated entries both coming from long-running university programs in Europe.

The most recent update, dated June 23, 2026, is UPMSat-3, developed by the Instituto Universitario de Microgravedad “Ignacio Da Riva” (IDR) of the Universidad Politécnica de Madrid (UPM). UPMSat-3 continues a program that reaches back to UPMSat-1 in 1995 and UPMSat-2 in 2020. The new spacecraft is a roughly 22-kilogram microsatellite — smaller than its predecessors but a substantial step up in capability — whose primary science mission is imaging of the cosmic microwave background, alongside a suite of low-cost in-orbit technology demonstrations for Spanish companies and research centers and continued work on attitude determination and control algorithms. UPMSat-3 has been selected to fly on the Isar Aerospace Spectrum launcher from Andøya, Norway, and the program continues to build hands-on engineering experience for students in UPM’s Master’s Degree in Space Systems (MUSE).

The panel’s prior update, dated June 4, 2026, is FramSat-1.5, a 3U CubeSat from the Norwegian University of Science and Technology (NTNU) and the student organization Orbit NTNU. FramSat is a scaled evolution of Orbit NTNU’s earlier SelfieSat, and the FramSat effort is closely tied to the ambition of launching “the first satellite from Norwegian soil” from the new spaceport at Andøya. FramSat carries a UHF amateur downlink — SatNOGS lists a 435.141 MHz 9k6 FSK (AX.25/G3RUH) transmitter marked IARU coordinated — supporting telemetry and an experimental sun-sensor payload built by students.

Both missions are representative of the bulk of IARU coordination traffic: student- and university-led educational spacecraft, most in low Earth orbit, that give the next generation of engineers direct experience with spacecraft communications while adding new signals for the amateur community to hunt. Developers planning a mission are reminded that coordination should be requested as early in the design process as possible, while frequencies can still be changed in response to the panel’s recommendations.

Application forms and contact information are available at https://www.iaru.org/reference/satellites/, and the coordination status list is at https://iaru.amsat-uk.org/index.php.

[ANS thanks the IARU Satellite Frequency Coordination Panel for the above information]


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Amateur Radio Payloads Aboard SpaceX Transporter-17

SpaceX is targeting Tuesday, July 7, 2026, for the launch of its Transporter-17 dedicated rideshare mission, with a 95-minute window opening at 07:10 UTC (12:10 a.m. PDT) from Space Launch Complex 4E at Vandenberg Space Force Base, California. A backup opportunity is available on July 8 at the same time. The Falcon 9 will carry a large collection of small satellites — deployment provider Exolaunch alone has manifested 49 spacecraft on the flight — into a sun-synchronous orbit, and among them are several carrying amateur radio payloads. As with all Transporter missions, deployments will be spaced out over a period of time after launch rather than occurring all at once, and it may be days or weeks before individual satellites are commissioned and heard.

As of this writing the full manifest is still being cataloged by the amateur community, and operators coordinating reception through the Libre Space Foundation’s SatNOGS network are working to add the new spacecraft and their transmitters to the SatNOGS database. Amateurs are encouraged to help by submitting satellite and transmitter suggestions. The confirmed amateur payloads with IARU-coordinated frequencies are summarized below; more may be identified as the manifest firms up.

MarmotSat

MarmotSat, the 3U CubeSat built by students at the University of Victoria Centre for Aerospace Research, is the headline amateur payload on the flight and is the subject of a separate feature in this issue. It carries the debut of the open-source Modular CubeSat Radio and supports four amateur experiments: a VHF digipeater and CW telemetry beacon on 145.875 MHz, a CW telemetry beacon and a DVB-S2 digital video beacon on 29.410 MHz, and a linear-frequency-modulation ionospheric-sounding downlink on 10 meters for amateur citizen scientists. Its IARU-coordinated downlinks are 29.410 MHz, 145.875 MHz, and 436.125 MHz (TT&C). The team hopes MarmotSat will become Canada’s first official OSCAR-designated satellite. See the full article elsewhere in this bulletin for details and for how to take part in commissioning.

Maveric

Maveric is a 3U CubeSat from the University of Southern California’s Space Engineering Research Center, with Anthony Planinac, K6FCF, as the responsible operator. The satellite carries two identical commercially available multispectral imagers, each of which will photograph an LCD screen positioned in front of the camera with the Earth and sky as a backdrop. The mission’s goals are a mix of science and technology development, including magnetic-field measurements and the testing of new algorithms for real-time onboard processing of optical imagery.

For amateurs, Maveric uses a 9,600 bps UHF downlink employing GMSK modulation with Golay framing. The IARU has coordinated a downlink on 437.575 MHz. The satellite is bound for an approximately 590 km polar orbit. Reception reports and telemetry decodes from the amateur community are, as always, valuable to the mission team during commissioning.

Other payloads of note

Also aboard Transporter-17 is LabSat IoT, a 34-cm CubeSat developed by the Faculty of Engineering at the University of Palermo in Argentina, together with COPITEC and FUNDETEC. LabSat IoT is a technology-demonstration platform for satellite Internet-of-Things and cellular (NTN) connectivity to remote areas, using in-flight-reconfigurable software-defined radios. Its experiments operate in IoT and mobile-satellite bands rather than the amateur-satellite service, so while it is a noteworthy student-built spacecraft on the same flight, it is not an amateur radio mission and does not carry an IARU-coordinated amateur payload.

The mission also includes numerous commercial and government smallsats — among them Firesat-1, -2, and -3, and a wide range of Earth-observation and technology-demonstration spacecraft from more than twenty countries — that do not use amateur frequencies.

Operators wishing to receive the amateur payloads should watch for orbital elements to be published after deployment and match them to each spacecraft using the beacon signals. Frequency and status details for coordinated satellites can be confirmed on the IARU coordination status pages at https://iaru.amsat-uk.org, and reception can be coordinated through the SatNOGS network. ANS will report on successful deployments and the opening of the new satellites’ amateur payloads as information becomes available.

[ANS thanks SpaceX, Exolaunch, the IARU Satellite Frequency Coordination Panel, the University of Victoria, the University of Southern California, and the Libre Space Foundation for the above information]


AMSAT at Moon Day, Dallas – Saturday, July 18, 2026

AMSAT Ambassador Tom Schuessler, N5HYP, writes:

“Hello AMSATters in and around the Dallas/Fort Worth area.

“We are coming up quickly toward the annual STEM event held by the Frontiers of Flight Museum at Dallas Love Field called ‘Moon Day.’ This year it will be Saturday, July 18th. Hours are from 10 AM to 4 PM. Always held around the time of the Apollo 11 moon landing, it is a fun public event showcasing astronomy, space science and technology, suitable for young and old alike. Last year it drew almost 1500 visitors. See https://flightmuseum.com/events/moonday/ for more information.

“I have been representing AMSAT and amateur radio satellites at Moon Day for many years now. We have an exhibit table right next to the Dallas Amateur Radio Club where we show off the AMSAT CubeSat Simulator, the Fox CubeSat engineering model, talk about orbits and footprints and this year, hope to have materials to hand out for kids from the AMSAT youth initiative, BuzzSat. Of course we feature the ISS as a great example of amateur radio in space. The CubeSat Simulator gives the ability to have a ‘Get your picture taken by a satellite’ photobooth experience. We also try to offer several voice satellite passes out in the parking lot to show off amateur radio space communications.

“Besides all the regular exhibits, attendees can attend various seminars and hear talks by astronauts.

“The museum has wonderful exhibits, including the Apollo 7 command module. This year there is a new exhibit on the Hindenburg which looks very interesting.”

[ANS thanks Tom Schuessler, N5HYP, AMSAT Ambassador, for the above information]


Changes to AMSAT TLE Distribution for July 3, 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/.

There are no changes to this week’s TLE distribution.

General Perturbations Data Support

AMSAT is pleased to announce that modern forms of what are called General Perturbations data are being disseminated via modern formats including JSON, XML and KVN at https://newark192.amsat.org/gpdata/current/. The reason this change is being made is that we are running out of 5-digit catalog numbers and the TLE format is not viable for satellites launched after July of this year. See https://celestrak.org/NORAD/documentation/gp-data-formats.php for details.

These data are presently considered in beta test for the next two months while hosted on the test server newark192.amsat.org, and we are very open to community feedback at webmaster at amsat.org. Testers may experience outages and errors while we make improvements. We intend to put this into production on our main web server in July as we expect that satellites launched after this summer will require one of the new formats to accommodate longer object numbers. AMSAT will continue to publish TLE bulletins for satellites launched before July 2026 indefinitely.

[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.

No contacts currently scheduled

Many times, a school makes a last-minute decision to do a Livestream or runs 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.

​Kenwood D710GA in the Zvezda Service Module – Call sign RSØISS. Please note we’re still in the process of troubleshooting and testing this radio. APRS is currently active on 437.825 MHz. Feel free to check out status reports at https://ariss-usa.org/ARISS_APRS/.

Ham TV is currently transmitting a test signal at 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 Ambassador News Logo

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

July 18, 2026
Moon Day
Frontiers of Flight Museum
6911 Lemmon Avenue
Dallas, TX 75209
https://flightmuseum.com/events/moonday/
N5HYP

October 8-11, 2026
44th AMSAT Space Symposium and Annual Membership Meeting
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
Details to follow

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]



Satellite Shorts from All Over

+ AMSAT Field Day 2026 ran June 27–28 alongside the ARRL event. Operators enjoyed access to more than 10 transponders/repeaters. FM voice limited to one QSO per bird (including ISS); linear birds (AO-7, RS-44, etc.) supported multiple contacts. The ISS repeater was noted as one of the busiest “stations” during Field Day. Many operators reported successful satellite QSOs. Logs due to KK5DO by July 28. See https://www.amsat.org/field-day/ for submission details (ANS thanks AMSAT for the information)

+ Fuji-OSCAR 29 (FO-29 / JAS-2) continues to reward operators during its extended full-sunlight season. Because the Japanese satellite’s onboard batteries failed years ago, its V/U inverting linear transponder operates only when the solar panels are illuminated. The current full-sunlight period runs through mid-November 2026, during which continuous transponder operation on illuminated passes should be possible. The transponder is SSB/CW only (uplink 145.900–146.000 MHz LSB, downlink 435.800–435.900 MHz USB). Operators are reminded to keep uplink power to the minimum needed and to ensure the downlink signal does not exceed the CW beacon level, so the limited resource can be shared by as many stations as possible worldwide. (ANS thanks AMSAT and JARL for the above information)

+ PARUS-T2 and RIDU-Sat 1 launched June 23 at 2125 UTC; both appear dead or non-functional per latest reports. PARUS-T2 carried APRS on 145.825 MHz. Other active/testing birds include HADES-SA (SO-127) with SSDV/CODEC2/FSK, Lilium-4 (APRS + V/U repeater), and RS83S (Lobachevsky) sending images on 436.320 MHz with experimental X-band. Upcoming: UNNE-1B (HADES-E2) targeted for October 2026 with FM voice, FSK, APRS, and CODEC2 capabilities. (ANS thanks AMSAT Upcoming Satellites for the information)

+ NASA astronauts Chris Williams (EV1, red stripes) and Jessica Meir (EV2) conducted a ~6.5–7 hour spacewalk on June 30 starting ~8:35 a.m. EDT / 1235 UTC. They successfully replaced a malfunctioning wrist joint on the Canadarm2 robotic arm (the joint had shown elevated motor current on May 27). This was Williams’ second and Meir’s fifth spacewalk. Live coverage was widely available on NASA+, YouTube, and other platforms. Preview conference held June 25. ARISS systems were powered down around the EVA and restored July 1. (ANS thanks NASA and ARISS for the information)

+ SpaceX conducted several Falcon 9 Starlink missions in the past week, including a West Coast launch on June 24 and additional missions on/around June 28. More launches are scheduled for early July. These continue rapid expansion of the Starlink broadband constellation. (ANS thanks SpaceX for the information).

+ A June 24 report highlighted that NASA’s aging infrastructure at Kennedy Space Center and other facilities will require more than $1 billion in upgrades to safely support the cadence of Artemis lunar missions. The watchdog emphasized risks to launch schedules and safety if investments are not made. (ANS thanks Space.com for the information)

+ Astronomers released one of the largest and most detailed images of the Milky Way yet, containing over 60 million stars and revealing dozens of exoplanet systems. The image provides unprecedented data for studying galactic structure and stellar populations. (ANS thanks Space.com for the information)

+ NASA and partners updated the 2026 ISS manifest: Soyuz MS-29 launches July 14 carrying NASA astronaut Anil Menon and two Roscosmos cosmonauts. SpaceX Crew-13 moves to mid-September. CRS-35 (SpaceX) and NG CRS-25 targeted for fall/winter with significant cargo including Roll Out Solar Arrays. (ANS thanks NASA for the information)


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

In addition to regular membership, AMSAT offers membership to:

  • Societies (a recognized group, clubs or organization).
  • 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] 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.

ANS-179 AMSAT News Service Weekly Bulletins

AMSAT News Service

ANS-179
June 28, 2026

In this edition:

* Classic OSCARLOCATOR Returns as Browser-Based Tracking Simulator
* Katalyst Launches Spacecraft to Rescue NASA’s Swift Observatory
* Rocket Lab Launches Spacecraft for Space Force Orbital Exercise
* Researchers Propose StormWall System to Reduce Solar Storm Impacts
* Changes to AMSAT TLE Distribution for June 26, 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/


Classic OSCARLOCATOR Returns as Browser-Based Tracking Simulator

A new browser-based recreation of the classic OSCARLOCATOR satellite tracking aid is now online and free for all amateurs to use at: https://oscarlocator.n8hm.radio/

The OSCARLOCATOR Web Simulator is the work of AMSAT Executive Vice President Paul Stoetzer, N8HM, and is modeled on his OrbitDeck desktop application. It runs entirely in a web browser on desktop and mobile devices, with no login, installation, or plug-ins required.

For amateurs who came to satellite operating after the era of paper tracking devices, the original OSCARLOCATOR was a circular, azimuthal-equidistant map of one hemisphere paired with a rotating clear overlay. By aligning the overlay to a satellite’s equator crossing, an operator could determine where the spacecraft would appear in the sky and when it would be in range — all without a computer. N8HM’s web version preserves that look and method while adding the convenience of live, on-demand computation.

The OSCARLOCATOR Web Simulator, showing the polar azimuthal-equidistant map, ground track, range circle, footprint, and the station and sweep controls.

The simulator renders the familiar polar azimuthal-equidistant map as well as a QTH-centered version, automatically choosing the North or South polar sheet for the operator’s location. It draws the satellite’s ground track with 10-minute time marks, plots a range circle over the operator’s station, and shows the spacecraft’s instantaneous footprint. A live readout reports the sub-satellite point, azimuth and elevation from the station, slant range, and whether the satellite is above the horizon.

A close-up of the polar map: the blue ground track with 10-minute marks, the green satellite marker and dashed footprint over the amber range circle and station, and the live data readout.

Operators can drive the display live in real time, pin an equator crossing to a chosen longitude and step forward minute by minute, or jump directly to the next visible pass over their location. A QTH-centered view places the operator’s station at the center of the map with azimuth bearings and great-circle distance rings — the same geometry used by a physical OSCARLOCATOR card.

The QTH-centered azimuthal-equidistant view, with the station at the center cross, compass bearings around the rim, distance rings in kilometers, and a satellite pass crossing overhead.

A “Next Passes” panel lists the next ten visible passes over the operator’s QTH, with acquisition-of-signal, peak, and loss-of-signal times, pass duration, and maximum elevation and bearing. A single click seeds any listed pass onto the map. A separate reference-orbit table gives equator-crossing times and longitudes suitable for setting a physical OSCARLOCATOR.

The Next Passes panel lists upcoming passes with AOS, peak, LOS, duration, and maximum elevation — each with a one-click Seed button.

The satellite picker is fed from current AMSAT GP (General Perturbations) orbital element data, with a bundled offline snapshot so the tool remains usable if live data cannot be retrieved. The station can be set by Maidenhead grid square, by latitude and longitude, or automatically through the browser’s geolocation. During live tracking the display follows the satellite across the equator, switching between the North and South polar sheets as appropriate.

Position calculations use a from-scratch SGP4/SDP4 propagator validated against the published Vallado reference vectors, with correct deep-space handling so that high-altitude and geosynchronous satellites such as QO-100 are displayed at their true sub-satellite points.

The OSCARLOCATOR Web Simulator is free to use and available online at https://oscarlocator.n8hm.radio. Amateurs new to satellite work may find its visual, hands-on approach a useful way to build intuition for how amateur satellites move and when they can be worked from a given location.

[ANS thanks Paul Stoetzer, N8HM, AMSAT Executive Vice President, for the above information]


Katalyst Launches Spacecraft to Rescue NASA’s Swift Observatory

Katalyst Space Technologies is preparing to launch its LINK servicing spacecraft aboard Northrop Grumman’s Pegasus XL rocket no earlier than June 30. The mission will attempt to rendezvous with NASA’s Swift Observatory and raise its orbit, potentially extending the life of the 22-year-old space telescope. The launch is expected to mark one of the first operational attempts to capture and service an unprepared satellite already in orbit.

Swift was launched in 2004 to study gamma-ray bursts, among the most energetic events in the universe. Although the observatory remains scientifically productive, it was built without propulsion capable of maintaining its orbit. Atmospheric drag has gradually reduced Swift’s altitude over the past two decades, and increased solar activity accelerated that decay. NASA determined the spacecraft was at risk of descending too low for safe servicing operations later this year.

To preserve the observatory, NASA selected Katalyst Space Technologies in 2025 to develop a rapid-response rescue mission. The company designed and built the LINK servicing spacecraft in less than one year, an unusually short schedule for a mission of its complexity. LINK carries electric propulsion and a robotic capture system designed to attach itself to satellites that were never intended to be serviced in orbit.

Katalyst Space’s LINK servicing spacecraft is integrated with its Pegasus XL launch vehicle. [Credit: NASA/Ron Beard]
Following launch, LINK will enter orbit and begin initial spacecraft checkout and commissioning activities. In the coming weeks, the spacecraft is expected to perform a series of orbital maneuvers to match Swift’s orbit before attempting a close approach. Once in position, three robotic arms will be used to capture the observatory and establish a secure mechanical connection.

The mission is expected to mark the final flight of Northrop Grumman’s Pegasus XL launch vehicle. First flown in 1990, Pegasus pioneered commercial air-launched access to space and completed dozens of missions during its 36-year career. The launch will utilize the last Pegasus XL rocket remaining in inventory and will be conducted from the L-1011 carrier aircraft Stargazer, believed to be the last operational Lockheed TriStar aircraft still flying.

If successful, the Swift rescue mission could establish a new model for extending the lives of aging spacecraft. Beyond preserving a valuable scientific observatory, the mission will demonstrate technologies that may one day allow commercial operators and government agencies to service satellites rather than replacing them. The mission is being closely watched as a potential milestone in the growing field of commercial on-orbit satellite servicing.

Read the full article at: https://arstechnica.com/space/2026/06/a-bold-satellite-rescue-mission-came-together-in-record-time-but-will-it-work/

[ANS thanks Stephen Clark, Ars Technica, for the above information]


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Rocket Lab Launches Spacecraft for Space Force Orbital Exercise

Rocket Lab successfully launched a spacecraft for the U.S. Space Force’s Victus Haze mission on June 19, lifting off aboard an Electron rocket from the company’s Launch Complex 1 in Mahia, New Zealand. The spacecraft, known as Victus Haze Puma, was placed into a sun-synchronous orbit and will participate in a military demonstration designed to test rapid response capabilities and on-orbit spacecraft operations.

Victus Haze is the fourth mission conducted under the Space Force’s Tactically Responsive Space (TacRS) program. The initiative seeks to demonstrate how commercial launch providers and spacecraft manufacturers can rapidly deploy satellites when needed. Unlike earlier demonstrations that focused primarily on launch readiness, Victus Haze expands the concept by evaluating spacecraft operations after reaching orbit.

Following launch, the Puma spacecraft entered a commissioning phase before beginning rendezvous and proximity operations with another spacecraft already in orbit. The mission will pair Rocket Lab’s vehicle with True Anomaly’s Jackal-004 spacecraft, which launched in May aboard a SpaceX Falcon 9 rideshare mission. During the exercise, the spacecraft will perform a variety of maneuvers intended to demonstrate space domain awareness and the ability to characterize nearby objects in orbit.

A Rocket Lab Electron rocket lifts off carrying the Victus Haze Puma spacecraft for the U.S. Space Force’s Victus Haze orbital exercise. [Credit: Rocket Lab]

The mission also showcased the responsiveness of Rocket Lab’s launch system. After receiving a formal launch order from the Space Force, the company launched the Electron rocket within 16 hours and 42 minutes, surpassing the program’s 24-hour launch requirement. Rocket Lab reported that mission planners calculated a final trajectory to a previously undisclosed orbit, updated flight software, and coordinated ground station support within only a few hours of receiving the order.

Victus Haze builds on lessons learned from the Victus Nox mission conducted in 2023. That earlier demonstration proved that commercial providers could rapidly launch a satellite following a short-notice tasking. Victus Haze extends the concept by demonstrating that responsive space operations can continue after launch, including the ability to maneuver spacecraft, inspect nearby objects, and gather information about activities occurring in orbit.

Space Force officials view these capabilities as increasingly important as Earth orbit becomes more crowded and strategically significant. Future military and civil missions may require the rapid deployment of spacecraft to replace damaged satellites, investigate unusual activity, or provide additional sensing capabilities. Through partnerships with commercial companies such as Rocket Lab and True Anomaly, the Victus Haze mission aims to demonstrate that these capabilities can be delivered on operational timelines measured in hours and days rather than months.

Read the full article at: https://spacenews.com/rocket-lab-launches-satellite-for-u-s-space-force-victus-haze-responsive-space-exercise/

[ANS thanks Sandra Erwin, SpaceNews, for the above information]


Researchers Propose StormWall System to Reduce Solar Storm Impacts

Scientists have proposed a new concept called StormWall that could one day help protect satellites, communications systems, and power infrastructure from severe solar storms. The idea, described in a recent paper published in the journal Space Weather, would use a fleet of spacecraft to temporarily strengthen Earth’s natural magnetic defenses when dangerous space weather is approaching.

Earth is normally protected by its magnetosphere, a magnetic field that deflects much of the charged particle radiation emitted by the Sun. During powerful solar eruptions, however, interactions between the solar wind and Earth’s magnetic field can allow large amounts of energy to enter near-Earth space. These events can disrupt satellite operations, radio communications, navigation systems, and electric power grids.

The proposed StormWall system would deploy six spacecraft in geosynchronous orbit. Each spacecraft would carry stores of material such as barium, lithium, sodium, or calcium. When a major solar storm is detected, the spacecraft would release the material into space, where sunlight would ionize it and create an artificial cloud of plasma.

An ESA illustration depicts the interaction between charged particles from the Sun and Earth’s magnetosphere. [Credit: ESA]
Researchers believe this plasma cloud could increase the mass density along the sunward boundary of the magnetosphere. Computer simulations suggest that the added material would reduce the efficiency of magnetic reconnection, the process that allows solar storm energy to penetrate Earth’s magnetic shield. By slowing this process, StormWall could lessen the severity of geomagnetic storms reaching Earth.

To evaluate the concept, the research team simulated the effects of the May 2024 “Mother’s Day” geomagnetic storm. Their results indicated that StormWall would not eliminate the storm entirely but could reduce key measures of storm intensity by more than 50 percent. The researchers also concluded that the amount of material required and the launch capabilities needed for the system are within the reach of current technology.

The concept remains a theoretical proposal and no StormWall mission has been approved or funded. Nevertheless, the study represents an unusual approach to space weather mitigation, shifting the focus from forecasting solar storms to actively reducing their impact. As satellite constellations and other orbital infrastructure continue to expand, researchers suggest that large-scale protective systems may become increasingly attractive in the future.

Read the full article at: https://www.space.com/astronomy/earth/scientists-propose-spraying-chemicals-into-earths-magnetic-field-to-protect-us-from-powerful-solar-storms

[ANS thanks Sharmila Kuthunur, Space.com, for the above information]


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Changes to AMSAT TLE Distribution for June 26, 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.

General Perturbations Data Support

AMSAT is pleased to announce that modern forms of what are called General Perturbations data are being disseminated via modern formats including JSON, XML and KVN at https://newark192.amsat.org/gpdata/current/. The reason this change is being made is that we are running out of 5-digit catalog numbers and the TLE format is not viable for satellites launched after July of this year. See https://celestrak.org/NORAD/documentation/gp-data-formats.php for details.

These data are presently considered in beta test for the next two months while hosted on the test server newark192.amsat.org, and we are very open to community feedback at [email protected]. Testers may experience outages and errors while we make improvements. We intend to put this into production on our main web server in July as we expect that satellites launched after this summer will require one of the new formats to accommodate longer object numbers. AMSAT will continue to publish TLE bulletins for satellites launched before July 2026 indefinitely.

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


ARISS News

Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide.

Scheduled Contacts

+ Recently Completed

National STEM Festival, Washington, DC, telebridge via VK6MJ
The ISS callsign was NA1SS
The scheduled crewmember was Chris Williams, KJ5GEW
The ARISS mentor was W4NTR/ KM4YHZ
Contact was successful: Thu 2026-06-25 13:31:42 UTC
Congratulations to the National STEM Festival students, Chris, mentor W4NTR/KM4YHZ, and ground station VK6MJ!

+ Upcoming Contacts

None currently scheduled

Many times, a school makes a last-minute decision to do a Livestream or runs 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. In support of an upcoming EVA: Power Down June 29 15:15 UTC | Power Up July 1 10:15 UTC

Kenwood D710GA in the Zvezda Service Module – Call sign RS0ISS. Please note we’re still in the process of troubleshooting and testing this radio. APRS is currently active on 437.825 MHz. Feel free to check out status reports at https://ariss-usa.org/ARISS_APRS/. In support of an upcoming EVA: Power Down June 29 15:20 UTC | Power Up July 1 10:20 UTC

​HamTV in the Columbus Module (2395.00 MHz) is currently transmitting a test signal. The color bar test generator portion of the system is experiencing technical issues, and troubleshooting is underway. For more information, visit the ARISS Ham TV Live site at https://live.ariss.org/hamtv/.

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]


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

Moon Day – July 11, 2026
Frontiers of Flight Museum
6911 Lemmon Avenue
Dallas, TX 75209
https://flightmuseum.com/events/moonday/
N5HYP

44th AMSAT Space Symposium and Annual Membership Meeting – October 8 thru 11, 2026
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
https://www.amsat.org/2026-amsat-symposium/

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

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


SDR Gen 2 Ad - 2026


Satellite Shorts from All Over

+ Bird Chaser Bingo Summer 2026 has its first Full Eclipse winner, with Mark KO6MBI of Sacramento, California, becoming the first participant to complete every square on the event’s satellite operating challenge card. Event organizer Sean Borgerson, KK7OVF, noted that KO6MBI is relatively new to amateur radio satellites and encouraged operators to listen for him on the air. Bird Chaser Bingo is a summer-long activity that challenges operators to complete satellite-themed operating objectives involving contacts, grids, satellites, and special operating situations. Participants can earn recognition for completing traditional bingo patterns or attempt the more difficult Full Eclipse by finishing the entire card. The event runs through August 31, 2026, with completed cards due by September 15, 2026. Additional information and downloadable bingo cards are available at https://borgersons.com/. (ANS thanks Sean Borgerson, KK7OVF, for the above information)

+ SpaceX launched its new Starfall reentry capsule on June 23 aboard a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida. The spacecraft is designed to carry cargo and research payloads to low Earth orbit and safely return them to Earth for recovery. Starfall can accommodate up to 1,000 kilograms (2,200 pounds) of payload and is intended to support applications such as orbital manufacturing and scientific research. The capsule uses a carbon-fiber heat shield, nitrogen gas attitude-control system, and parachute-assisted splashdown recovery. During the June 23 flight demonstration, SpaceX targeted a recovery area in the Pacific Ocean approximately 1,300 kilometers (700 nautical miles) off the U.S. West Coast. The mission marked Starfall’s first flight test, with at least one additional demonstration mission planned. (ANS thanks Space.com for the above information)

+ Scale RF has launched a Crowd Supply campaign for its QuadRF 4×4 MIMO software-defined radio development kit. The QuadRF operates from 4.9 to 6.0 GHz in the C-band and provides four full-duplex transmit and receive channels with up to 1 watt of output power per antenna. The kit includes four dual-polarization antennas, an integrated Raspberry Pi 5, and open-source software for beamforming and phased-array experimentation. Scale RF says the design is intended as the building block for larger phased-array systems, including its planned MoonRF architecture for Earth-Moon-Earth communication and radio astronomy. The complete QuadRF kit is priced at $499 during the Crowd Supply campaign, with initial deliveries expected this fall. Additional information is available on the Crowd Supply campaign page at https://www.crowdsupply.com/scale-rf/quadrf#. (ANS thanks Scale RF for the above information)

+ Researchers at NASA’s Glenn Research Center in Cleveland, Ohio, are testing a regenerative fuel cell system that could provide long-duration energy storage for future Artemis missions to the Moon. The system generates electricity by combining hydrogen and oxygen into water, then recharges by splitting the water back into its original gases for repeated use. The technology could provide a lighter alternative to batteries while storing enough energy to power habitats, rovers, and other lunar systems through the Moon’s two-week-long nights. Engineers recently began testing the complete integrated system, including storage of the hydrogen and oxygen produced during recharge. Data gathered during the test campaign will help prepare the technology for future environmental testing under simulated lunar conditions. If successful, regenerative fuel cells could become an important part of the infrastructure needed to support sustained human exploration of the Moon. (ANS thanks NASA for the above information)


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

In addition to regular membership, AMSAT offers membership to:

  • Societies (a recognized group, clubs or organization).
  • Students enrolled in at least half-time status are eligible for free membership 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,

Mitch Ahrenstorff, ADØHJ
mahrenstorff [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.

ANS-172 AMSAT News Service Weekly Bulletins

AMSAT News Service

ANS-172
June 21, 2026

In this edition:

* 2026 AMSAT Field Day Next Weekend!
* 2026 AMSAT Space Symposium & Annual General Meeting
* Satellites Are The New Fire Towers
* Announcing OrbitDeck
* Changes to AMSAT-NA TLE Distribution
* Dragon Returns Packed with Space Station Science
* 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/


2026 AMSAT Field Day Next Weekend!

It’s that time of year again; summer and Field Day! Each year the American Radio Relay League (ARRL) sponsors Field Day as a “picnic, a campout, practice for emergencies, an informal contest and, most of all, FUN!” The event takes place during a 27-hour period on the fourth weekend of June.

For 2026 the event takes place from 1800 UTC on Saturday June 27, 2026 through 2100 UTC on Sunday June 28, 2026. Those who set up prior to 1800 UTC on June 27 can operate only 24 hours. The Radio Amateur Satellite Corporation (AMSAT) promotes its own version of Field Day for operation via the amateur satellites, held concurrently with the ARRL event.

This year should be as much fun as last year since we have more than 10 transponders and repeaters available. For AMSAT purposes, a transponder on a satellite would count as two if you could do phone and CW. We count them by modes, not the satellite names.

Users should check the AMSAT status page at http://www.amsat.org/status/ and the pages at https://www.amsat.org/two-way-satellites/ for what is available in the weeks leading up to field day. To reduce the amount of time to research each satellite, see the current FM satellite table at https://www.amsat.org/fm-satellite-frequency-summary/ and the current linear satellite table at https://www.amsat.org/linear-satellite-frequency-summary/ .

If you are considering ONLY the FM voice satellites, there are ISS and SO-50. The congestion on FM LEO satellites is always so intense that we must continue to limit their use to one-QSO-per-FM-satellite. This includes the International Space Station. You will be allowed one QSO if the ISS is operating Voice.

It was suggested during past field days that a control station be allowed to coordinate contacts on the FM satellites. There is nothing in the rules that would prohibit this. This is nothing more than a single station working multiple QSO’s. If a station were to act as a control station and give QSO’s to every other field day station, the control station would still only be allowed to turn in one QSO per FM satellite while the other station would be able to submit one QSO.

The format for the message exchange on the ISS or other digital packet satellite is an unproto packet to the other station (3-way exchange required) with all the same information as normally exchanged for ARRL Field Day, e.g.:

W6NWG de KK5DO 2A STX
KK5DO de W6NWG QSL 5A SDG
W6NWG de KK5DO QSL

If you have worked the satellites on Field Day in recent years, you may have noticed a lot of good contacts can be made on some of the less-populated, low-earth-orbit satellites like AO-7, RS-44, AO-73, FO-29 and JO-97. During Field Day the transponders come alive like 20 meters on a weekend. The good news is that the transponders on these satellites will support multiple simultaneous contacts. The bad news is that you can’t use FM, just low duty-cycle modes like SSB and CW.

[ANS thanks Bruce Paige, KK5DO, AMSAT Director of Contests and Awards for the above information.]


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2026 AMSAT Space Symposium & Annual General Meeting

The 44th AMSAT Space Symposium & Annual General Meeting will be held in Jacksonville, FL on October 8-11, 2026 at the Crowne Plaza Jacksonville Airport/I-95.

Registration details and Call for Papers will be coming soon.

To book hotel rooms online, click here: AMSAT Conference Rooms

Reservations can also be made by phone at 1-800-227-6963. The group code is AMS. The direct hotel phone number is 1-904-741-4404.

[ANS thanks AMSAT for the above information.]


The 2026 Coins Are Here! Help Support GOLF-TEE and Fox-Plus.
Annual memberships start at only $120.

Presidents' Club 2026 Coin

Join the AMSAT President’s Club today and help Keep Amateur Radio in Space!
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Satellites Are The New Fire Towers

The Bezos Earth Fund announced a $26 million grant for the nonprofit Earth Fire Alliance and its satellite-based wildfire detection program, Axios’ Ben Geman reports.

The money — alongside support from Google and others — will help fund the launch of three FireSat satellites this summer.

The groups say they’ll “provide wildfire monitoring at least twice daily over critical geographies, including a focus on the Amazon Basin — one of the most fire-vulnerable regions on Earth.”

The funding is the largest-ever single philanthropic grant for wildfire detection, the groups say. They add that the program could help protect homes, communities and biodiversity — and cut CO2 emissions from wildfires by up to 10% annually.


Earth Fire Alliance’s first three FireSats at a clean room in Mountain View, Calif. (Photo: Muon Space)

Wildfires are a major driver of deforestation, which worsens climate change. They accounted for 42% of tree cover loss in 2025, per World Resources Institute data.

The Earth Fire Alliance says it hopes to have dozens of satellites operating by the early 2030s that can “monitor every point on Earth every 20 minutes.”

[ANS thanks Axios for the above information. Read the full article at https://www.axios.com/newsletters/axios-pm-f6fe1278-52eb-43c8-8bfe-7a1fe85b1c56.html?utm_source=newsletter&utm_medium=email&utm_campaign=newsletter_axiospm&stream=top]


Announcing OrbitDeck

A new open-source desktop application called OrbitDeck brings the classic OSCARLOCATOR into the software age, pairing a faithful recreation of the beloved paper tracking aid with a built-in classroom of orbital-mechanics lessons. Written in Python and released under the MIT license, OrbitDeck runs on Windows, macOS, and Linux — including the Raspberry Pi — and is tracking-and-analysis software only; radio and rotator control are intentionally left to the excellent dedicated tools already serving that role.

 

OrbitDeck map screen (Image credit: Paul Stoetzer)

Longtime operators will remember the OSCARLOCATOR: a polar map overlaid with a rotating ground-track transparency that let you predict a pass with nothing but a pencil and a clock. OrbitDeck rebuilds that experience as an interactive on-screen OSCARLOCATOR. You drag the map to rotate the path-arc overlay across a polar or QTH-centered base map, watching the satellite’s position and your station’s footprint move in real time. A protractor-style rim with per-degree tick marks and longitude and azimuth labels frames the disc. You can drive the overlay live, position it by hand to any equator-crossing longitude, drag the marker along the arc to step through the minutes after the crossing, or seed it directly to your next visible pass. A compact next-equator-crossings list is built in.

Crucially, OrbitDeck also closes the loop with paper. Any satellite — real or hypothetical — can be exported as a printable PDF OSCARLOCATOR, ready to drop onto a clipboard for portable, screen-free operating in the field or in the classroom.

That classroom focus runs throughout the program. A dedicated Learn section presents orbital mechanics across grouped, interactive tabs — Kepler’s equal-areas law, anomalies and the vis-viva relation, nodal precession and sun-synchronous orbits, slant range and footprint geometry, Doppler tune-through, eclipse and beta-angle sunlight, a link-budget sandbox, and element-set aging — each with a live diagram you can manipulate rather than merely read. A printable “Orbits 101” handout rounds it out.

The standout teaching tool is the lab satellite. From within the OSCARLOCATOR simulator, you can invent a hypothetical bird and edit its orbital elements with sliders and entry boxes — altitude (with the period updating live), eccentricity, inclination, RAAN, argument of perigee, mean anomaly, and direct apogee and perigee control. The ground track, footprint, and range circle respond instantly, plain-language explainers describe the effect of every change, and a gallery of presets loads recognizable archetypes from ISS-like LEO to Molniya and geostationary. Design an orbit to a requirement, compare two designs side by side, then name and print your creation as an OSCARLOCATOR exactly like a catalog satellite.

OrbitDeck reads modern GP/OMM data, ships its own SGP4 propagator and an offline catalog so it works without a connection, and is free to download. It is an inviting on-ramp for newcomers and a genuinely useful operating and teaching aid for veterans.

OrbitDeck builds and source code are available at https://github.com/prstoetzer/OrbitDeck

[ANS thanks Paul Stoetzer, N8HM, AMSAT Executive Vice President and developer of OrbitDeck, for the above information]


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Changes to AMSAT TLE Distribution for June 19, 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/.

There are no changes to this week’s TLE distribution.

General Perturbations Data Support

AMSAT is pleased to announce that modern forms of what are called General Perturbations data are being disseminated via modern formats including JSON, XML and KVN at https://newark192.amsat.org/gpdata/current/. The reason this change is being made is that we are running out of 5-digit catalog numbers and the TLE format is not viable for satellites launched after July of this year. See https://celestrak.org/NORAD/documentation/gp-data-formats.php for details.

These data are presently considered in beta test for the next two months while hosted on the test server newark192.amsat.org, and we are very open to community feedback at [email protected]. Testers may experience outages and errors while we make improvements. We intend to put this into production on our main web server in July as we expect that satellites launched after this summer will require one of the new formats to accommodate longer object numbers. AMSAT will continue to publish TLE bulletins for satellites launched before July 2026 indefinitely.

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


SDR Gen 2 Ad - 2026


Dragon Returns Packed with Space Station Science

Scientists await a big splash in the Pacific Ocean as one of the most research-packed Dragon spacecraft to date returns, completing the 34th SpaceX commercial resupply mission to the International Space Station for NASA. Biological and materials samples, along with tested hardware, are heading back to research teams on Earth for further analysis, advancing NASA’s work to prepare humans for exploration beyond low Earth orbit and to deliver benefits back home.

NASA astronaut Jessica Meir prepares samples in the Life Sciences Glovebox to study how weightlessness affects crew blood clotting and immune function for the Megakaryocyte Flying-One investigation. (Photo Credit: NASA)

Some samples returning are for NASA’s Hematopoietic Stem Cell Expansion in Space: Pathfinder Investigation (InSPA-StemCellEX-H2), which seeks to use the microgravity environment to scale up the production of stems cells. On Earth, lab-produced blood stem cells lose their ability to form different cell types, like red and white blood cells that are critical to treating patients with certain blood diseases and cancers. In microgravity, researchers believe this ability will be better preserved while also growing these stem cells in greater numbers. The returning samples will undergo further analysis to determine if space-based efforts produce larger quantities of enhanced stem cells suitable for clinical use.

The team behind NASA’s Streptococcus pneumoniae (Spn) Infection of Cardiac Tissue (MVP Cell-09) experiment is awaiting the return of stem cell-derived heart tissues that were intentionally infected with a pneumonia-causing bacterium as part of ongoing microgravity research. Pneumonia increases the risk of heart disease, which is not fully understood. Because bacteria tend to become more active and virulent in microgravity, this experiment could amplify their effects, making it possible to detect cellular responses that cannot be observed on Earth.

NASA’s Megakaryocyte Flying-One (MeF1) samples are returning to Earth to help understand how large cells found in bone marrow, known as megakaryocytes, and the platelets they produce adapt to spaceflight. Megakaryocytes and platelets play important roles in the formation of blood clots and immune responses. The returning samples, including those taken from astronauts, could show us how the human immune system reacts aboard the space station and help prepare for future exploration missions.

Semiconductor research samples as part of NASA’s In-Space Production of Semimetal-Semiconductor Composite Bulk Crystals in Microgravity (SUBSA-InSPA-SSCug) investigation are returning to Earth for further analysis. This study manufactured semimetal-semiconductor composite alloy crystals in space, which have applications in many electronics, including sensors and lasers. Researchers believe microgravity could enable the production of significantly greater and higher-quality crystals, supporting the development of next-generation semiconductor technologies.

Additional experiments being returned include NASA’s Zero Boil-Off Tank Noncondensables (ZBOT-NC) investigation, NASA’s DNA Nano Therapeutics-3 space-assembled DNA-inspired materials, NASA’s InSPA-Sachi Nanoligomer investigation, European Space Agency’s (ESA’s) Green Bone investigation, NASA’s 3D Bone Marrow Analog research, and NASA’s InSPA-Auxilium Bioprinter-Cell Printing is investigation. To read more about these experiments, see the full article at https://www.nasa.gov/missions/station/iss-research/nasas-spacex-crs-34-dragon-returns-packed-with-space-station-science/.

[ANS thanks NASA for the above information.]


ARISS News

Amateurs and others around the world may listen in on contacts between amateurs operating in schools and allowing students to interact with astronauts and cosmonauts aboard the International Space Station. The downlink frequency on which to listen is 145.800 MHz worldwide.

Scheduled Contacts

+ Recently Completed

Youth on the Air Camp 2026 (YOTA Camp 2026), Huntsville, AL, direct via W4Y
The ISS callsign was NA1SS
The scheduled crewmember was Chris Williams, KJ5GEW
The ARISS mentor was K4RGK
Contact was successful: Thu 2026-06-18 16:36:25 UTC 37 degrees maximum elevation
Congratulations to the Youth on the Air Camp 2026 students, Chris, mentor Youth on the Air Camp 2026, and ground station W4Y!
Watch for Livestream at https://www.youtube.com/live/eVo288DAH4U

+ Upcoming Contacts

National STEM Festival, Washington, DC, telebridge via VK6MJ
The ISS callsign is presently scheduled to be NA1SS
The scheduled crewmember is Chris Williams, KJ5GEW
The ARISS mentor is W4NTR/ KM4YHZ
Contact is go for: Thu 2026-06-25 13:31:42 UTC 49 degrees maximum elevation

Many times, a school makes a last-minute decision to do a Livestream or runs 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.

ARISS News

There is a lot of traffic on Facebook and on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule:

Wakeup to Workday start= 1.5 hours
Workday start to Workday end=12 hours
Workday end to Sleep= 2 hours
Sleep to wakeup= 8.5 hours

The crew’s usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They’re usually free most of the weekend, as well.

The APRS packet system is also active (437.825 MHz up & down).

Ham TV is currently transmitting a test signal at 2395.00 MHz. The color bar test generator portion of the Ham TV system is experiencing unexpected technical issues. ARISS is working to troubleshoot the issue with NASA’s payloads support team and the ISS crew.

As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. Radios will be powered down in support of an upcoming spacewalk in late June: Power down: June 29 at 15:15 UTC Power up: July 1 at 10:15 UTC

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.]


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 News LogoScheduled Events

June 27, 1800 UTC – June 28, 2100 UTC, 2026
ARRL Field Day
https://www.amsat.org/field-day/

July 11, 2026
Moon Day
Frontiers of Flight Museum
6911 Lemmon Ave.
Dallas, TX 75209
https://flightmuseum.com/events/moonday/
N5HYP

October 8-11, 2026
44th AMSAT Space Symposium and Annual Membership Meeting
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
Details to follow

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

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


Satellite Shorts from All Over

+ HamSat (free) and HamSat Pro (one-time purchase), iOS satellite tracking apps for iPhone/iPad by Vasco Barreiros, CT1OY, have recently been updated with new features, including compatibility with Apple Watch. HamSat is available on the iPhone App Store. (ANS thanks Peter Green, GØABI, for the above information.)

+ The upper stage from a commercial Chinese rocket that launched last week has broken apart in space, spreading debris in a heavily trafficked part of low-Earth orbit — home to the International Space Station and a significant portion of SpaceX’s Starlink broadband network. The breakup occurred shortly after the Zhuque-2E rocket reached orbit on June 9 with two satellites providing direct-to-cell communications, perhaps around the time the upper stage was expected to perform a disposal burn. The U.S. Space Force confirmed the breakup event stating, “There are currently no threats to human spaceflight.” (ANS thanks ArsTechica for the above information. Read the full article at https://arstechnica.com/space/2026/06/a-chinese-rocket-breaks-apart-dangerously-close-to-the-starlink-constellation/.)

+ A new paper from researchers at NASA’s Ames Research Center in California reports that 73.3 percent of images the agency’s new SPHEREx space telescope collected between May and September of last year were contaminated by at least one artificial satellite trail. Typically this type of light pollution is associated with ground telescopes. But SPHEREx is an orbital satellite about 700 kilometers above the Earth’s surface. Apparently even that wasn’t enough to escape from the light trails. (ANS thanks IEEE Spectrum for the above information. See the full article at https://spectrum.ieee.org/satellite-light-pollution-spherex-hubble.)

+ A dazzling fireball streaked through the skies above the Midwest on June 14, crashing through Earth’s atmosphere at a staggering 56,000 mph (90,123 km.h per hour) before burning up. More than 500 witnesses reported the event to the American Meteor Society,— some of whom uploaded footage of the fiery event. NASA’s all-sky camera network also captured the fireball from three locations. (ANS thanks Space.com for the above information. Read the full article, with some of the images, at https://www.space.com/stargazing/meteor-showers/watch-a-fireball-burn-a-300-mile-path-above-the-midwest-us-video.)

+ An Ariane 6 with upgraded solid rocket boosters successfully launched three dozen Amazon Leo satellites June 17. So far, 367 Amazon Leo satellites have launched on Ariane 6, Atlas V and Falcon 9. However, there is only one more Atlas 5 launch for Amazon Leo, scheduled for July 3, forcing Amazon to lean more on Arianespace. The company still has a July 2029 deadline to deploy the full constellation, as part of the FCC’s waiver decision on June 5. (ANS thanks SpaceNews for the above information. If registered with a SpaceNews account, see the full article at https://spacenews.com/upgraded-ariane-6-launches-amazon-leo-satellites/.)

+ NASA Administrator Jared Isaacman, responding to questions about the agency’s selection of an all-male crew for the Artemis 3 mission, said the astronauts were chosen based solely on their experience, skill sets and availability. Isaacman strongly defended the crew selection, saying he had “personally been to space twice with 50 percent female crews. My closest advisors and some of the smartest engineers I know are women. In our latest NASA leadership organization, nearly 50 percent of the center directors and mission directorate leadership are women.” (ANS thanks SpaceflightNow for the above information. Read the full article at https://spaceflightnow.com/2026/06/10/nasa-chief-defends-selection-of-all-male-artemis-iii-crew/.)


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 enrolled in at least half-time status are eligible for free membership 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.

ANS-158 AMSAT News Service Weekly Bulletins

AMSAT News Service

ANS-158
June 7, 2026

In this edition:

  • Deadline for Candidate Nominations for 2026 AMSAT Board of Directors Election is June 15
  • HADES-SA / SpinnyOne Designated Spain-OSCAR 127 (SO-127)
  • AMSAT Submits Letter of Intent for NASA SLS CubeSat Opportunity on Artemis III, IV, and V
  • OscarWatch Tracker: A New Satellite Tracking Program from MM9SQL
  • Changes to AMSAT TLE Distribution for June 5, 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/


Deadline for Candidate Nominations for 2026 AMSAT Board of Directors Election is June 15

The nomination period for the AMSAT 2026 Board of Directors election, which will take place during the third quarter of the year, ends on June 15, 2026.

Three director positions are set to expire in 2026. The current board members whose seats are up for election are:

  • Mark Hammond, N8MH
  • Bruce Paige, KK5DO
  • Paul Stoetzer, N8HM

In addition to these three full Director roles, up to two Alternate Directors may also be elected to serve one-year terms.

To nominate a candidate, a written submission is required. Nominations must include the nominee’s name, call sign, and contact information, along with the same details for either five AMSAT members in good standing or one Member Society endorsing the candidate.

Nominations should be directed to the AMSAT Secretary:

Douglas Tabor, N6UA
1133 Verlan Way
Cheyenne, WY 82009

Per AMSAT’s bylaws, all nominations must follow the format specified by the Secretary. Doug Tabor has indicated that nominations will be accepted in both hard copy (via postal mail) and digital formats (including email or scanned documents). However, fax submissions are not permitted.

Email nominations should be sent to: dtabor [at] amsat [dot] org

All nomination petitions must be received by the Secretary no later than June 15. After the submission deadline, the Secretary will confirm the eligibility of each candidate and the supporting members or societies, with final notification to candidates provided by the end of June.

[ANS thanks Doug Tabor, N6UA, AMSAT Secretary, for the above information]


LIMITED TIME OFFER!!!

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.

Getting Started

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. JOIN TODAY at https://launch.amsat.org/ (Remember! Students join for FREE!)


HADES-SA / SpinnyOne Designated Spain-OSCAR 127 (SO-127)

On March 30th, 2026, the HADES-SA/SpinnyONE satellite was launched on a Falcon 9 launch vehicle from Vandenberg Space Force Base in California. Developed by AMSAT-EA, the satellite carries an SSDV and CODEC2 payload for reception by amateur radio enthusiasts around the world. The satellite is actively transmitting images and messages now.

At the request of AMSAT-EA, AMSAT hereby designates HADES-SA/SpinnyONE as Spain-OSCAR 127 (SO-127). We congratulate AMSAT-EA, thank them for their contribution to the amateur satellite community, and wish them continued success on this and future projects.

SO-127 (Courtesy AMSAT-EA)

 

[ANS thanks Drew Glasbrenner, KO4MA, AMSAT President / OSCAR Number Administrator, for the above information]

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

Your $20 Donation Goes to Help Fly a FoxPlus Satellite Includes First Class Postage (Sorry – U.S. Addresses Only) Order Today at https://www.amsat.org/product/amsat-remove-before-flight-keychain

 

AMSAT Submits Letter of Intent for NASA SLS CubeSat Opportunity on Artemis III, IV, and V

On May 31, 2026, AMSAT submitted a Letter of Intent (LOI) to NASA Marshall Space Flight Center in response to a Sources Sought Notice for CubeSat secondary payload opportunities aboard the Space Launch System (SLS) on the Artemis III, IV, and V missions.

The LOI expresses strong interest in developing and flying an AMSAT-designed CubeSat payload on one or more of these missions. It highlights the strategic alignment between the opportunity and AMSAT’s ongoing GOLF (Greater Orbit, Larger Footprint) program, which is building the technologies and operational experience needed for amateur radio satellites in progressively higher orbits—from LEO through MEO to HEO.

A high-Earth deployment would provide an outstanding environment to qualify key GOLF technologies—particularly radiation-tolerant electronics, advanced Software-Defined Radio (SDR) transponders, three-axis attitude determination and control, and deployable/steerable solar arrays—in the demanding thermal, radiation, and trajectory conditions beyond low Earth orbit. Such a mission would significantly expand amateur radio’s “larger footprint,” deliver critical flight heritage, and create clear synergies with NASA’s exploration, technology demonstration, and public engagement goals.

The LOI emphasizes AMSAT’s long heritage of successful CubeSat missions (including the Fox series flown via NASA CSLI/ELaNa) and its robust portfolio of educational and university partnership programs. These include the CubeSat Simulator Program used worldwide in schools and universities, collaborations such as the radiation experiment from Vanderbilt University and imaging payloads from Virginia Tech on Fox satellites, broader STEM outreach through live satellite contacts and telemetry projects, and active mentorship of student teams and early-career professionals.

AMSAT is prepared to deliver a flight-ready CubeSat payload, leveraging its proven engineering pipeline, dedicated volunteer technical team, and sustainable funding model of membership support, targeted donations, and grants. AMSAT proposes a 6U-class spacecraft (<14 kg) featuring deployable solar arrays and an AMSAT-developed amateur radio communications system supporting VHF uplink/UHF downlink plus 5 GHz uplink and 10 GHz downlink. A precursor 3U technology demonstrator, GOLF-TEE, is under construction with completion targeted by the end of the year; if selected, AMSAT would pivot development toward the 6U configuration in collaboration with partners. Ground operations would leverage the global amateur radio community for telemetry reception via AMSAT’s analysis tools, supported by dedicated AMSAT command stations.

The organization is genuinely excited about the prospect of contributing an AMSAT-developed CubeSat to the Artemis program—advancing amateur radio’s historic role in space exploration, qualifying technologies for future HEO and lunar missions, and inspiring students and the global public through meaningful educational partnerships.

[ANS thanks AMSAT for the above information]


The 2026 President’s Club Coin is Now Here! 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/


OscarWatch Tracker: A New Satellite Tracking Program from MM9SQL

A new multi-platform desktop satellite tracking application for amateur radio operators, OscarWatch Tracker, has been released and is under active development. Developed by Peter Goodhall, MM9SQL, and hosted on GitHub, OscarWatch provides an integrated environment for tracking AMSAT and other amateur satellites, predicting passes, managing Doppler-corrected frequencies, and optionally automating rotator and radio control—all from a single map-centered interface.

Key Features

OscarWatch is tailored for VHF/UHF satellite operators working FM cubesats (e.g., SO-50, ISS), linear transponders (e.g., RS-44, FO-29), and similar modes. It assumes familiarity with basic concepts like azimuth, elevation, and Doppler but automates the calculations and hardware interactions to let operators focus on making contacts.

  • Visual Tracking: World map with satellite subpoint, ground track, and footprint overlays (with optional motion arrows and greyline terminator). Includes a polar sky plot relative to your QTH. Support for time scrubbing to preview passes without affecting live hardware. Optional DX station grid marker with live Az/El from the remote location.
  • Pass Predictions: List of upcoming passes with TCA (time of closest approach/max elevation), filters for minimum elevation and duration. Features include a pass planner with multi-station profiles and .ics calendar export, plus a mutual pass finder for two-station coordination.
  • Frequency Management: Built-in transponder database with live Doppler-corrected uplink/downlink frequencies. Supports RX offsets (separate for Voice/CW on linear modes), CTCSS tones, and easy toggling between modes. Includes a transponder database editor for custom additions and updates from the published JSON source.
  • Hardware Integration: Optional serial CAT control for supported radios (including Icom IC-910/9100/9700/705, Yaesu FT-847/817/818/991 series, Kenwood TS-2000 beta) with Doppler tracking, satellite/split modes, and CTCSS handling. Dual-radio support for full-duplex setups. Rotator control for Yaesu GS-232 and EasyComm-compatible controllers (including SPID), with manual park and smart azimuth options for 450° rotators.
  • Additional Tools: Voice announcements for satellite rising, automatic pass WAV recording, Cloudlog integration for frequency logging, and live telemetry (Az/El, range, altitude).

OscarWatch does not decode telemetry or serve as primary logging software; it complements existing tools as a pass assistant for home or portable use. TLEs and the transponder database are sourced from tle.oscarwatch.org.

Getting Started

Pre-built binaries for Windows, macOS, and Linux are available on the GitHub Releases page. After installation:

  1. Configure your station location (lat/long/grid) in Settings.
  2. Select desired satellites and refresh TLEs.
  3. Set up radio and rotator COM ports if using automation.
  4. Focus a satellite via the map or pass list to view live data and frequencies.

Detailed operator guides, keyboard shortcuts, and troubleshooting are included in the app’s Help menu and the repository’s help/ folder. Note that macOS users may need to approve the unsigned app and bundled libraries on first launch.

Supported Hardware Highlights

Radios (serial CAT, native drivers): Icom IC-910/9100/9700/705, Yaesu FT-847/817/818/991 series, Kenwood TS-2000 (beta), with dual-radio options. Rotators: Yaesu GS-232, EasyComm II (SPID/M2/etc.).

The project emphasizes custom native drivers for reliable satellite-specific behavior over general libraries like HamLib.

OscarWatch is still evolving rapidly (recent versions added in-app updates, multi-language support including Japanese, Simplified Chinese, and Brazilian Portuguese, greyline overlays, mutual pass visualizer, and expanded rig/rotator support). Check the GitHub repository for the latest releases, source code, TODO list, and contribution opportunities.

For more information and to download: https://github.com/magicbug/OscarWatch-Tracker.

[ANS thanks Peter Goodhall, MM9SQL, for the above information]


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Changes to AMSAT TLE Distribution for June 5, 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/.

There are no changes to this week’s TLE distribution.

General Perturbations Data Support

AMSAT is pleased to announce that modern forms of what are called General Perturbations data are being disseminated via modern formats including JSON, XML and KVN at https://newark192.amsat.org/gpdata/current/. The reason this change is being made is that we are running out of 5-digit catalog numbers and the TLE format is not viable for satellites launched after July of this year. See https://celestrak.org/NORAD/documentation/gp-data-formats.php for details.

These data are presently considered in beta test for the next two months while hosted on the test server newark192.amsat.org, and we are very open to community feedback at webmaster at amsat.org. Testers may experience outages and errors while we make improvements. We intend to put this into production on our main web server in July as we expect that satellites launched after this summer will require one of the new formats to accommodate longer object numbers. AMSAT will continue to publish TLE bulletins for satellites launched before July 2026 indefinitely.

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


Buying from DX Engineering?
Add AMSAT’s Getting Started With Amateur Satellites to your order.Available for $30 from DX Engineering (free shipping on most orders over $99)
https://www.dxengineering.com/parts/amt-satellites


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.

Collège Louis Aragon, Imphy, France, direct via F5KCH

The ISS callsign is presently scheduled to be OR4ISS 
The scheduled crewmember is Sophie Adenot KJ5LTN  
The ARISS mentor is F6ICS   

Contact is go for: Mon 2026-06-08 13:31:48 UTC 86 deg

Geneva Christian College, Latrobe, Tasmania, Australia telebridge via VK4ISS

The ISS callsign is presently scheduled to be TBD
The scheduled crewmember is Chris Williams KJ5GEW
The ARISS mentor is VK4KHZ  

Contact is go for: Tue 2026-06-09 08:30:56 UTC 85 deg

Many times, a school makes a last-minute decision to do a Livestream or runs 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.

​Kenwood D710GA in the Zvezda Service Module – Call sign RSØISS. Please note we’re still in the process of troubleshooting and testing this radio. APRS is currently active on 437.825 MHz. Feel free to check out status reports at https://ariss-usa.org/ARISS_APRS/.

Ham TV is currently transmitting a test signal at 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]


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


AMSAT Ambassador Activities

AMSAT Ambassador News Logo

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

October 8-11, 2026
44th AMSAT Space Symposium and Annual Membership Meeting
Crowne Plaza JAX Airport
14670 Duval Road
Jacksonville, FL 32218
Details to follow

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]



Satellite Shorts from All Over

+ The U.S. Space Force this week awarded SpaceX a $4.16 billion contract to build a constellation of satellites designed to track airborne targets from orbit. The program is intended to detect and track airborne targets including aircraft, cruise missiles and potentially hypersonic weapons. In the same week, the U.S. Space Force awarded SpaceX a $2.29 billion contract to build a network of low Earth orbit satellites intended to function as a military internet in space. Both deals were among the largest contracts issued this year by Space Systems Command, the Space Force’s acquisition arm. (ANS thanks SpaceNews for the above information. Read the full articles at https://spacenews.com/space-force-awards-spacex-4-16-billion-to-build-satellite-network-for-airborne-target-tracking/?utm_source=ActiveCampaign&utm_medium=email&utm_content=SpaceX%20s%20%246%20billion%20week&utm_campaign=Editor%20s%20Choice%202026%2006-03 and at https://spacenews.com/spacex-wins-2-29-billion-space-force-contract-for-military-data-network/?utm_source=ActiveCampaign&utm_medium=email&utm_content=SpaceX%20s%20%246%20billion%20week&utm_campaign=Editor%20s%20Choice%202026%2006-03.)

+ NASA has officially ended the Mars Atmosphere and Volatile Evolution (MAVEN) mission, six months after it lost contact with the probe. MAVEN was the agency’s first program dedicated to studying the Martian atmosphere and its evolution. It launched in 2013 from Cape Canaveral and entered the Martian orbit nearly a year later in 2014. The probe’s primary science mission was scheduled to last one year, but it ended up spending more than 11 years in orbit, sending back data from Mars. NASA even used it as an antenna for the Mars 2020 mission, which brought the Perserance rover to the planet. (ANS thanks Engadget for the above information. Read More: https://www.engadget.com/2187315/nasa-ends-maven-mars-mission/.)

+ PaperSat, an satellite tracking program for the M5Stack Paper S3, an ESP32 based eink device, has been ported to the new M5Stack M5Paper Color. Due to the refresh rate limitations of the color e-ink display, the program has been reconceptualized as a eight satellite next-pass dashboard (in two pages) with alerts to pass events using the on-board RGB LEDs and speaker. PaperSatColor can be found at https://github.com/prstoetzer/PaperSatColor. (ANS thanks Paul Stoetzer, N8HM for the information)


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

In addition to regular membership, AMSAT offers membership to:

  • Societies (a recognized group, clubs or organization).
  • 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] 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.