Space Weather Message Code: SUMX01 Serial Number: 218 Issue Time: 2026 Jun 03 1159 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Jun 03 1119 UTC Maximum Time: 2026 Jun 03 1128 UTC End Time: 2026 Jun 03 1135 UTC Xray Class: X1.0 Optical Class: Location: N17W19 Noaa Scale: R3 - Strong Comment: GOES-18 outage so using GOES-19 GOES-18 outage so using GOES-19NOAA Scale: R3 - Strong NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potentia ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 531 Issue Time: 2026 Jun 03 1141 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jun 03 1141 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-r ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 530 Issue Time: 2026 Jun 03 0700 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jun 03 0700 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-r ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 529 Issue Time: 2026 Jun 03 0137 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jun 03 0131 UTC Noaa Scale: R2 - Moderate Comment: NOAA Scale: R2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-r ...Continue Reading

*AMSAT News Service* ANS-151 May 31, 2026 In this edition: * AMSAT Opens Candidate Nominations for 2026 Board of Directors Election * 2026 AMSAT Space Symposium & Annual General Meeting * AMSAT Field Day 2026 * RADIANT Project Aims to Bring Delay-Tolerant Networking to Amateur Radio * SpaceX Starship V3’s First Test Flight Largely Successful * China Launches Shenzhou 23 Spacecraft * Changes to AMSAT-NA TLE Distribution * Blue Origin Explosion * ARISS News * AMSAT Ambassador Activiti ...Continue Reading

*AMSAT News Service* ANS-151 May 31, 2026 In this edition: * AMSAT Opens Candidate Nominations for 2026 Board of Directors Election * 2026 AMSAT Space Symposium & Annual General Meeting * AMSAT Field Day 2026 * RADIANT Project Aims to Bring Delay-Tolerant Networking to Amateur Radio * SpaceX Starship V3’s First Test Flight Largely Successful * China Launches Shenzhou 23 Spacecraft * Changes to AMSAT-NA TLE Distribution * Blue Origin Explosion * ARISS News * AMSAT Ambassador Activiti ...Continue Reading

The following satellites have been removed from this week's AMSAT TLE distribution. SilverSat NORAD Cat ID 66909 Decayed from orbit on or about 23 April 2026 HYDRA-W NORAD Cat ID 63490 Decayed from orbit on or about 24 April 2026 HADES-ICM (SO-125)" : 63492 Decayed from orbit on or about 22 May 2026 Joe Fitzgerald AMSAT Orbital Elements manager Keps mailing list -- keps@amsat.org View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/keps@amsat.org To unsubscribe send an email to k ...Continue Reading

SB KEPS @ AMSAT $ORB26149.1 2Line Orbital Elements 26149.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 May 29, 2026 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 without ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3694 Issue Time: 2026 May 24 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3693 Begin Time: 2026-05-16 17:40 Yesterday Maximum 2MeV Flux: 3762 pfu Continued 2026-05-24 04:59 by Forecaster User Continued 2026-05-24 04:59 by Forecaster User Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your a ...Continue Reading

AMSAT News Service ANS-144 May 24, 2026 In this edition: * OrigamiSat-2 Receives Fuji-OSCAR 126 (FO-126) Designation from AMSAT * AMSAT Opens Candidate Nominations for 2026 Board of Directors Election * AMSAT Forum Covers Education, Operations, and Future Satellite Projects * Bird Chaser Bingo Summer 2026 Adds New Twist to Satellite Operating * Hamvention 2026 Brings Estimated $35 Million Impact to Xenia Region * Changes to AMSAT TLE Distribution for May 22, 2026 * ARISS News * AMSAT Ambassador Activities * Satellite S ...Continue Reading