Space Weather Message Code: ALTEF3 Serial Number: 3467 Issue Time: 2025 May 20 1427 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3466 Begin Time: 2025 May 18 1705 UTC Yesterday Maximum 2MeV Flux: 1870 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: 3466 Issue Time: 2025 May 19 1801 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3465 Begin Time: 2025 May 18 1705 UTC Yesterday Maximum 2MeV Flux: 1870 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: 3465 Issue Time: 2025 May 19 1013 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3464 Begin Time: 2025 May 18 1705 UTC Yesterday Maximum 2MeV Flux: 1155 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: 3464 Issue Time: 2025 May 18 1721 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 May 18 1705 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

SB KEPS @ AMSAT $ORB25136.1 2Line Orbital Elements 25136.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 16, 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 without ...Continue Reading

This week there are no additions or deletions to the AMSAT TLE distribution. 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 keps-leave@amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 482 Issue Time: 2025 May 14 1117 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 May 14 1115 UTC 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-ray Flux intensity. For real-time in ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 193 Issue Time: 2025 May 14 0839 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2025 May 14 0804 UTC Maximum Time: 2025 May 14 0825 UTC End Time: 2025 May 14 0831 UTC X-ray Class: X2.7 Optical Class: 2b Location: N15E60 NOAA Scale: R3 - Strong NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strong ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 481 Issue Time: 2025 May 14 0819 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 May 14 0817 UTC 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-ray Flux intensity. For real-time in ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 480 Issue Time: 2025 May 14 0325 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 May 14 0323 UTC 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-ray Flux intensity. For real-time in ...Continue Reading