June 19th 2025 PST
Space Weather Message Code: SUMX01 Serial Number: 196 Issue Time: 2025 Jun 20 0014 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2025 Jun 19 2337 UTC Maximum Time: 2025 Jun 19 2350 UTC End Time: 2025 Jun 19 2354 UTC X-ray Class: X1.9 Location: N18W38 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
June 19th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 490 Issue Time: 2025 Jun 19 2348 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 19 2347 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
June 17th 2025 PST
Space Weather Message Code: SUMX01 Serial Number: 195 Issue Time: 2025 Jun 17 2204 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2025 Jun 17 2138 UTC Maximum Time: 2025 Jun 17 2149 UTC End Time: 2025 Jun 17 2154 UTC X-ray Class: X1.2 Optical Class: 2b Location: N18W10 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
June 17th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 489 Issue Time: 2025 Jun 17 2150 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 17 2147 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
June 17th 2025 PST
Space Weather Message Code: ALTEF3 Serial Number: 3480 Issue Time: 2025 Jun 17 1350 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Jun 17 1340 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
June 16th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 488 Issue Time: 2025 Jun 16 0938 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 16 0935 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
June 15th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 487 Issue Time: 2025 Jun 15 1805 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 15 1800 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
June 15th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 487 Issue Time: 2025 Jun 15 1803 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 15 1800 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
June 14th 2025 PST
*In this edition:* Hotel Reservations for 43rd AMSAT Space Symposium and Annual Meeting Now Available Hard Copy Getting Started in Amateur Satellites Now Available Bankston Introduces Hamvention 2025 AMSAT Forum Burns Fisher �?? The Legacy of AMSAT Flight Software SkyRoof - A Specialized Satellite Tracking Program for SDR's VUCC Satellite Standing June 2025 DXCC Satellite Standing June 2025 Changes to AMSAT-NA TLE Distribution for June 13, 2025 ARISS News AMSAT Ambassador Activities Satellite Shorts From All Over The A ...Continue Reading
June 14th 2025 PST
Space Weather Message Code: ALTXMF Serial Number: 486 Issue Time: 2025 Jun 14 2259 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Jun 14 2258 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
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