:Product: 1017SGAS.txt :Issued: 2025 Oct 17 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 290 Issued at 0245Z on 17 Oct 2025 This report is compiled from data received at SWO on 16 Oct A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0017 0021 0024 4246 N23W57 M1.1 Sf 0135 0135 0135 200 0249 0249 0249 140 0532 0532 0532 350 0844 0849 0851 4246 C3.3 300 0941 0949 0953 4246 C3.5 130 1141 1203 1225 4246 C8.4 110 1353 1408 1422 4246 N21W67 M1.3 Sf 1824 1824 1826 4252 S13E12 Sf 110 1900 1916 1936 4246 N22W68 M1.1 Sf 2215 2215 2215 120 2238 2254 2302 4246 N22W68 C5.5 Sf 200 2312 2319 2328 4246 N22W68 M1.0 Sf 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 161 SSN 132 Afr/Ap 003/004 X-ray Background C2.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.6e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.40e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 1 1 2 1 1 1 2 Planetary 1 1 2 1 1 0 1 2 F. Comments: None.