:Product: Solar Region Summary :Issued: 2026 Jan 04 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 4 Issued at 0030Z on 04 Jan 2026 Report compiled from data received at SWO on 03 Jan I. Regions with Sunspots. Locations Valid at 03/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4323 S17W28 288 0140 Dai 07 20 Beta 4324 N24W28 288 0070 Dai 05 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3593 Issue Time: 2026 Jan 03 1348 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3592 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 4197 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

:Product: Solar Region Summary :Issued: 2026 Jan 03 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 3 Issued at 0030Z on 03 Jan 2026 Report compiled from data received at SWO on 02 Jan I. Regions with Sunspots. Locations Valid at 02/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4323 S17W14 287 0030 Cro 03 06 Beta 4324 N24W15 288 0170 Dai 04 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3592 Issue Time: 2026 Jan 02 1221 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3591 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 1919 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

:Product: Solar Region Summary :Issued: 2026 Jan 02 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 2 Issued at 0030Z on 02 Jan 2026 Report compiled from data received at SWO on 01 Jan I. Regions with Sunspots. Locations Valid at 01/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N11W90 016 0030 Hsx 02 01 Alpha 4323 S17W00 286 0010 Bxo 03 ...Continue Reading

:Product: Solar Region Summary :Issued: 2026 Jan 01 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 1 Issued at 0030Z on 01 Jan 2026 Report compiled from data received at SWO on 31 Dec I. Regions with Sunspots. Locations Valid at 31/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N11W76 015 0160 Cao 06 05 Beta 4323 S17E14 285 0010 Axx 06 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3591 Issue Time: 2025 Dec 31 1632 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3590 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 5613 pfu Comment: Electrons went over threshold at 31/1255 through 31/1530 UTC. Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.Thank you for using the Product Subscripti ...Continue Reading

:Product: Solar Region Summary :Issued: 2025 Dec 31 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 365 Issued at 0030Z on 31 Dec 2025 Report compiled from data received at SWO on 30 Dec I. Regions with Sunspots. Locations Valid at 30/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N11W62 014 0200 Dso 05 07 Beta-Gamma 4321 S10W90 042 0320 ...Continue Reading

Space Weather Message Code: ALTEF3 Serial Number: 3590 Issue Time: 2025 Dec 30 0502 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3589 Begin Time: 2025 Dec 21 1425 UTC Yesterday Maximum 2MeV Flux: 6690 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

:Product: Solar Region Summary :Issued: 2025 Dec 30 0030 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Region Summary SRS Number 364 Issued at 0030Z on 30 Dec 2025 Report compiled from data received at SWO on 29 Dec I. Regions with Sunspots. Locations Valid at 29/2400Z Nmbr Location Lo Area Z LL NN Mag Type 4317 N12W50 015 0200 Cso 05 05 Beta 4321 S09W77 042 0320 Dkc 0 ...Continue Reading