:Product: 0925SGAS.txt :Issued: 2023 Sep 25 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 268 Issued at 0245Z on 25 Sep 2023 This report is compiled from data received at SWO on 24 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0037 0037 0037 110 0105 0105 0105 100 0205 0205 0205 160 0227 0227 0227 320 0317 0328 0336 3445 S12E22 M4.4 1n 120 0548 0549 0652 3435 N27W55 Sf 180 1038 1038 1043 3435 N11W13 Sf 230 1451 1500 1505 3443 M1.0 360 1507 1510 II 1535 1535 1535 420 2250 2250 2250 140 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached moderate geomagnetic storm levels due to the passage of a CME. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 174 SSN 172 Afr/Ap 017/024 X-ray Background C1.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.9e+07 GT 10 MeV 4.5e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 1 3 3 2 2 5 6 Planetary 2 1 3 2 3 3 6 6 F. Comments: None.