Space Weather Message Code: ALTEF3 Serial Number: 3588 Issue Time: 2025 Dec 28 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3587 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 6123 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

*In this edition: * CubeSatSim Kits Now Available Youth on the Air Camp 2026 Applications Open AMSAT Youth Initiative: "Satellites and Climate Change" Course Now Online United Nations Office for Outer Space Affairs: Sustainable Development Goals Launch Teams Practiced Artemis 2 Countdown Changes to AMSAT-NA TLE Distribution for December 26, 2025 ARISS NEWS AMSAT Ambassador Activities Satellite Shorts From All Over The AMSAT® News Service bulletins are a free, weekly news and information service of ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3587 Issue Time: 2025 Dec 27 0507 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3586 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 8195 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: 3586 Issue Time: 2025 Dec 27 0324 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3585 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 8195 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: ALTXMF Serial Number: 506 Issue Time: 2025 Dec 27 0150 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Dec 27 0148 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: ALTEF3 Serial Number: 3585 Issue Time: 2025 Dec 26 0512 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3584 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 8651 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 $ORB25360.1 2Line Orbital Elements 25360.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 December 26, 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 wit ...Continue Reading

CEVROSAT1 has been identified as object 66308 Joe Fitzgerald KM1P 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 keps-leave@amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3584 Issue Time: 2025 Dec 25 0501 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3583 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 7351 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: 3583 Issue Time: 2025 Dec 24 0506 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3582 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 5557 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