March 31st 2026 PDT
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
March 30th 2026 PDT
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
March 29th 2026 PDT
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
March 29th 2026 PDT
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
March 29th 2026 PDT
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
March 29th 2026 PDT
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
March 29th 2026 PDT
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
March 28th 2026 PDT
AMSAT News Service ANS-088 March 29, 2026 In this edition: * AMSAT Announces Full Lineup of Events and Activities for Hamvention 2026 * AMSAT CubeSatSim Lite Available Again for Purchase Through AMSAT Store * New “Ground Station” Software Streamlines Satellite Tracking and Decoding * KrakenRF Announces Discovery Drive Az/El Rotator for Satellite Operations * Artemis II to Deploy International CubeSats into High Earth Orbit * Changes to AMSAT TLE Distribution for March 27, 2026 * ARISS News * AMSAT Ambassador Activities ...Continue Reading
March 28th 2026 PDT
Space Weather Message Code: ALTEF3 Serial Number: 3659 Issue Time: 2026 Mar 28 1455 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3658 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 12785 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
March 26th 2026 PDT
Space Weather Message Code: ALTEF3 Serial Number: 3658 Issue Time: 2026 Mar 27 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3657 Begin Time: 2026 Mar 22 1430 UTC Yesterday Maximum 2MeV Flux: 11382 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
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