Space Weather Message Code: ALTEF3 Serial Number: 3711 Issue Time: 2026 Jul 07 0506 UTC CANCEL ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Cancel Serial Number: 3710 Original Issue Time: 2026 Jul 07 0503 UTC Incorrect maximum value for yesterday. Incorrect maximum value for yesterday.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 Subscription Site. Please ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3712 Issue Time: 2026 Jul 07 0507 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3709 Begin Time: 2026 Jul 06 1149 UTC Yesterday Maximum 2MeV Flux: 1936 pfu 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 Subscription Site. Please do not use the from address for corre ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3710 Issue Time: 2026 Jul 07 0503 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3709 Begin Time: 2026 Jul 06 1149 UTC Yesterday Maximum 2MeV Flux: 1936 pfu Yesterday's max: 194 pfu Yesterday's max: 194 pfuThank 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 Subscription S ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3709 Issue Time: 2026 Jul 06 1150 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2026 Jul 06 1149 UTC Station: GOES-19 Comment: Yesterday's max: 625 pfu Yesterday's max: 625 pfuThank 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 Subscription Site. Please do not use the from address for corres ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 539 Issue Time: 2026 Jul 05 1800 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 05 1758 UTC Noaa Scale: R2 - Moderate Comment: 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-r ...Continue Reading

AMSAT News Service ANS-186July 5, 2026 In this edition: [*]AMSAT President Drew Glasbrenner, KO4MA, Featured on Ham Radio Workbench Podcast [*]MarmotSat: Student-Built Canadian CubeSat Brings Open-Source Amateur Experiments to VHF and 10 Meters [*]OSCARLOCATOR Web Generator Turns Live Elements Into Printable Tracking Sheets [*]Recent IARU Amateur Satellite Frequency Coordination Activity [*]Amateur Radio Payloads Aboard SpaceX Transporter-17 [*]AMSAT at Moon Day, Dallas – Saturday, July 18, 2026 ...Continue Reading

Space Weather Message Code: SUMX01 Serial Number: 220 Issue Time: 2026 Jul 04 2116 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2026 Jul 04 2029 UTC Maximum Time: 2026 Jul 04 2041 UTC End Time: 2026 Jul 04 2047 UTC Xray Class: X1.3 Optical Class: Location: N15W75 Noaa Scale: R3 - Strong Comment: 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 su ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 538 Issue Time: 2026 Jul 04 2043 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 04 2040 UTC Noaa Scale: R2 - Moderate Comment: 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-r ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 537 Issue Time: 2026 Jul 03 1900 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 03 1856 UTC Noaa Scale: R2 - Moderate Comment: 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-r ...Continue Reading

Space Weather Message Code: ALTXMF Serial Number: 536 Issue Time: 2026 Jul 03 1810 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Jul 03 1807 UTC Noaa Scale: R2 - Moderate Comment: 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-r ...Continue Reading