The following satellites have been added to this week's AMSAT TLE distribution. They have provisional object numbers that will change once official USSF/NORAD numbers are assigned HADES-SA/SpinnyONE Provisional ID 71958 LILIUM-4 Provisional ID 71922 PARUS-6U1 Provisional ID 71919 JACK-002 Provisional ID 71927 SAL-E Provisional ID 71904 DISCO-2 Provisional ID 71908 Keps mailing list -- keps@amsat.org View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/keps@amsat.org To unsubscribe sen ...Continue Reading

SB KEPS @ AMSAT $ORB26093.1 2Line Orbital Elements 26093.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 April 03, 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 withou ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3663 Issue Time: 2026 Apr 01 1330 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3662 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 1413 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: 3662 Issue Time: 2026 Mar 31 1454 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3661 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 1358 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: 3661 Issue Time: 2026 Mar 30 0742 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3660 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 3755 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: SUMX01 Serial Number: 214 Issue Time: 2026 Mar 30 0518 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Mar 30 0247 UTC Maximum Time: 2026 Mar 30 0319 UTC End Time: 2026 Mar 30 0344 UTC X-ray Class: X1,4 Location: S27E42 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, strongest at the sub-sola ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 213 Issue Time: 2026 Mar 30 0516 UTC CANCEL SUMMARY: X-ray Event exceeded X1 Cancel Serial Number: 212 Original Issue Time: 2026 Mar 30 0353 UTC Comment: The flare maximum was recorded as an X1.4. 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, strongest at the sub-solar point. Radio - Wide area blacko ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 212 Issue Time: 2026 Mar 30 0353 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Mar 30 0247 UTC Maximum Time: 2026 Mar 30 0319 UTC End Time: 2026 Mar 30 0344 UTC X-ray Class: X1.5 Location: S27E42 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, strongest at the sub-sola ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 521 Issue Time: 2026 Mar 30 0307 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Mar 30 0306 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: 3660 Issue Time: 2026 Mar 29 1247 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3659 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 1596 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