:Product: 0118SGAS.txt :Issued: 2026 Jan 18 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 018 Issued at 0245Z on 18 Jan 2026 This report is compiled from data received at SWO on 17 Jan A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0116 0116 0116 270 0524 0525 0525 130 0538 0538 0538 390 0615 0615 0616 360 0819 0819 0819 430 1019 1019 1022 140 1019 1029 1032 4341 S07E35 M2.1 2b 1313 1313 1313 140 1316 1316 1316 120 1453 1454 1454 2500 1503 1503 1503 100 2246 2246 2246 100 2332 2342 2346 4341 C8.4 1400 2346 2351 2354 4341 M1.1 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 159 SSN 124 Afr/Ap 018/027 X-ray Background C1.3 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 7.40e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 5 4 4 2 3 4 3 3 Planetary 5 4 4 3 3 4 4 4 F. Comments: None