:Product: 0117SGAS.txt :Issued: 2026 Jan 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 017 Issued at 0245Z on 17 Jan 2026 This report is compiled from data received at SWO on 16 Jan A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0757 0757 0757 130 1007 1007 1008 200 1058 1058 1058 130 1644 1644 1644 120 1904 1915 1922 4343 S10W04 C4.0 Sf 900 B. Proton Events: None C. Geomagnetic Activity Summary: Field conditions were at unsettled to minor storm (G1-Minor) levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 148 SSN 144 Afr/Ap 017/026 X-ray Background B9.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.0e+06 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.10e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 3 3 3 4 5 3 3 Planetary 3 4 3 3 4 5 4 5 F. Comments: None