Space Weather Message Code: ALTEF3 Serial Number: 3553 Issue Time: 2025 Nov 02 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3552 Begin Time: 2025 Oct 31 1250 UTC Yesterday Maximum 2MeV Flux: 10574 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or upda ...Continue Reading

November 2, 2025 In this edition: * AMSAT Receives Two ARDC Grants for Youth Initiative Program * Alan Johnston, KU2Y, Presents CubeSat Simulator 2025 Updates * ARISS 2025 Highlights Presented by Frank Bauer, KA3HDO * GridMasterMap Satellite Top 100 Rovers November Rankings 2025 * VUCC Satellite Standing November 2025 * DXCC Satellite Standing for November 2025 * Changes to AMSAT-NA TLE Distribution * ARISS News * AMSAT Ambassador Activities * Satellite Shorts From All Over The AMSAT(R) News Service bulletins ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3552 Issue Time: 2025 Nov 01 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3551 Begin Time: 2025 Oct 31 1250 UTC Yesterday Maximum 2MeV Flux: 4767 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3551 Issue Time: 2025 Oct 31 1309 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Oct 31 1250 UTC Station: GOES19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product ...Continue Reading

ANS-299 October 26, 2025 In this edition: * AMSAT President Outlines Future Directions * Symposium Videos Available on YouTube * Is AO-7 Still the Oldest Satellite? * Amateur Radio Receiver Reveals Global Satellite Privacy Issue * Changes to AMSAT-NA TLE Distribution * Russian Cosmonauts Conduct Spacewalk Outside ISS * ARISS News * AMSAT Ambassador Activities * Satellite Shorts From All Over The AMSAT® News Service bulletins are a free, weekly news and information service of AMSAT, The Radio Ama ...Continue Reading

ANS-299 October 26, 2025 In this edition: * AMSAT President Outlines Future Directions * Symposium Videos Available on YouTube * Is AO-7 Still the Oldest Satellite? * Amateur Radio Receiver Reveals Global Satellite Privacy Issue * Changes to AMSAT-NA TLE Distribution * Russian Cosmonauts Conduct Spacewalk Outside ISS * ARISS News * AMSAT Ambassador Activities * Satellite Shorts From All Over The AMSAT® News Service bulletins are a free, weekly news and information service of AMSAT, The Radio Ama ...Continue Reading

The following satellites have been removed from this week's AMSAT TLE distribution: NOAA-15 NORAD Cat ID 25338 Spacecraft decommissioned 19 August 2025 NOAA-19 NORAD Cat ID 33591 Spacecraft decommissioned 13 August 2025 UPMSat 2 NORAD Cat ID 46276 Decayed from orbit on or about 11 October 2025 LEDSAT NORAD Cat ID 49069 Decayed from orbit on or about 15 October 2025 CAS-4A NORAD Cat ID 42761 Decayed from orbit on or about 9 October 2025 CAS-4B NORAD Cat ID 42759 Decayted from orbit on or about 14 October 202 ...Continue Reading

SB KEPS @ AMSAT $ORB25297.1 2Line Orbital Elements 25297.AMSAT QST de W1STR AMSAT Orbital Elements for Amateur Satellites in TLE Format From Orbital Analysis Office New England Sci-Tech STEM Education Center Natick MA October 24, 2025 To all radio amateurs These element sets describe the orbits of various satellites in use by the amateur radio community. For details see: www.amsat.org/keplerian-elements-formats/ A daily update of element sets is available at: www.amsat.org/tle/daily-bulletin.txt or with ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3550 Issue Time: 2025 Oct 17 1122 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3549 Begin Time: 2025 Oct 01 1325 UTC Yesterday Maximum 2MeV Flux: 3769 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscription Service. If you would like to remove a product subscription or updat ...Continue Reading

SB KEPS @ AMSAT $ORB25290.1 2Line Orbital Elements 25290.AMSAT QST de W1STR AMSAT Orbital Elements for Amateur Satellites in TLE Format From Orbital Analysis Office New England Sci-Tech STEM Education Center Natick MA October 17, 2025 To all radio amateurs These element sets describe the orbits of various satellites in use by the amateur radio community. For details see: www.amsat.org/keplerian-elements-formats/ A daily update of element sets is available at: www.amsat.org/tle/daily-bulletin.txt or with ...Continue Reading