:Product: 0511SGAS.txt :Issued: 2026 May 11 0245 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 and Geophysical Activity Summary SGAS Number 131 Issued at 0245Z on 11 May 2026 This report is compiled from data received at SWO on 10 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0040 0040 0040 100 0108 0108 0108 120 0356 0403 0408 4432 C1.4 100 0408 0408 0408 140 0417 0417 0419 100 0440 0440 0440 100 0446 0446 0447 100 0511 0511 0512 190 0517 0517 0517 140 1100 1114 1119 4432 N14W48 Sf 110 1319 1339 1402 4436 N19E62 M5.7 2b 120 550 II B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 126 SSN 089 Afr/Ap 004/005 X-ray Background B6.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.1e+05 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) Daily Electron Fluence GT 2 MeV 1.60e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 0 1 2 1 2 2 1 1 Planetary 0 1 2 1 1 1 2 1 F. Comments: None.