:Product: 0831SGAS.txt :Issued: 2025 Aug 31 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 243 Issued at 0245Z on 31 Aug 2025 This report is compiled from data received at SWO on 30 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1400 1409 1423 4197 M1.3 1551 1559 1612 4197 M1.2 1911 2002 2041 4199 M2.7 B. Proton Events: The greater than 10 MeV proton flux remained elevated, but continued a gradual decline toward background levels. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 317 SSN 183 Afr/Ap 008/??? X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.3e+06 GT 10 MeV 1.5e+05 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.30e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 2 2 3 4 2 3 Planetary 2 1 2 2 2 2 2 2 F. Comments: None