:Product: 0920SGAS.txt :Issued: 2025 Sep 20 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 263 Issued at 0245Z on 20 Sep 2025 This report is compiled from data received at SWO on 19 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0903 0903 0903 130 2049 2112 2120 4216 N09W25 C5.8 3n 2122 2141 2156 4216 M1.5 B. Proton Events: None C. Geomagnetic Activity Summary: Field activity was at quiet levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 160 SSN 158 Afr/Ap 007/007 X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.6e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.90e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 1 0 1 2 1 1 1 Planetary ? ? ? ? ? ? ? ? F. Comments: None