Space Weather Message Code: ALTXMF Serial Number: 407 Issue Time: 2024 Jul 29 0235 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 29 0234 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: ALTXMF Serial Number: 406 Issue Time: 2024 Jul 28 1041 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 28 1038 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: ALTXMF Serial Number: 405 Issue Time: 2024 Jul 28 0151 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 28 0149 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: ALTXMF Serial Number: 404 Issue Time: 2024 Jul 17 0641 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 17 0638 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: SUMX01 Serial Number: 165 Issue Time: 2024 Jul 16 1346 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2024 Jul 16 1311 UTC Maximum Time: 2024 Jul 16 1326 UTC End Time: 2024 Jul 16 1336 UTC X-ray Class: X1.9 Location: S05W85 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: 403 Issue Time: 2024 Jul 16 1323 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 16 1320 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: SUMX01 Serial Number: 164 Issue Time: 2024 Jul 14 0303 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2024 Jul 14 0233 UTC Maximum Time: 2024 Jul 14 0234 UTC End Time: 2024 Jul 14 0248 UTC X-ray Class: X1.2 Location: S09W40 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: 402 Issue Time: 2024 Jul 14 0234 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 14 0233 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

In this edition: 2024 AMSAT Board of Directors Election Field Day Submissions Now Due Grace Papay, K8LG Named 2024 WA6ITF Memorial Amateur Radio Newsline Young Ham of the Year AMSAT TLE Dissemination Updates Updating Keps in SatPC32 - An Update from DK1TB NASA Discovers Strange Spectral Formations Cover LEO Orbits Changes to AMSAT-NA TLE Distribution for July 12, 2024 ARISS News Upcoming Satellite Operations AMSAT Ambassador Events Satellite Shorts From All Over The AMSAT News Service bulletins are a free, weekly ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 401 Issue Time: 2024 Jul 13 2304 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2024 Jul 13 2302 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