Space Weather Message Code: ALTEF3 Serial Number: 3635 Issue Time: 2026 Feb 26 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3634 Begin Time: 2026 Feb 23 1045 UTC Yesterday Maximum 2MeV Flux: 10494 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

Space Weather Message Code: ALTEF3 Serial Number: 3634 Issue Time: 2026 Feb 25 0501 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3633 Begin Time: 2026 Feb 23 1045 UTC Yesterday Maximum 2MeV Flux: 13748 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

Space Weather Message Code: ALTEF3 Serial Number: 3633 Issue Time: 2026 Feb 24 0502 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3632 Begin Time: 2026 Feb 23 1045 UTC Yesterday Maximum 2MeV Flux: 4958 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: 3632 Issue Time: 2026 Feb 23 1134 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2026 Feb 23 1045 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

February 22, 2026 *In this edition:* REMINDER: AMSAT New Memberships & Renewals Includes Getting Started Guide AMSAT Publishes "Satellites in Space" Coloring Book AMSAT-DL's Peter Gülzow, DB2OS Honored "Satellites and Pollution Control" Added to BuzzSat Online Courses Changes to AMSAT TLE Distribution for February 20, 2026 ARISS News AMSAT Ambassador Activities Satellite Shorts From All Over The AMSAT(R) News Service bulletins are a free, weekly news and information service of AMS ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3631 Issue Time: 2026 Feb 20 0716 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3630 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 3261 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 $ORB26051.1 2Line Orbital Elements 26051.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 February 20, 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 wit ...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: ALTEF3 Serial Number: 3630 Issue Time: 2026 Feb 19 1206 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3629 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 3801 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: 3629 Issue Time: 2026 Feb 18 0527 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3628 Begin Time: 2026 Feb 16 1635 UTC Yesterday Maximum 2MeV Flux: 2215 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