:Product: 1021SGAS.txt :Issued: 2025 Oct 21 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 294 Issued at 0245Z on 21 Oct 2025 This report is compiled from data received at SWO on 20 Oct A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0102 0102 0102 100 0510 0527 0538 4248 M1.0 0608 0608 0609 130 1158 1200 1200 100 1207 1207 1207 110 1222 1222 1222 130 1228 1228 1228 110 1751 1751 1751 100 1807 1807 1807 120 1906 1906 1906 100 1910 1910 1911 120 1921 1921 1921 110 2004 2005 2005 140 2041 2041 2042 100 2159 2159 2159 100 2208 2208 2208 110 2316 2324 2333 C2.1 250 2337 2337 2337 220 B. Proton Events: None C. Geomagnetic Activity Summary: Field activity was at quiet to unsettled levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 140 SSN 109 Afr/Ap 006/008 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.0e+05 GT 10 MeV 1.6e+04 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 2 3 3 1 2 3 2 2 Planetary 3 3 2 2 2 1 1 2 F. Comments: None