:Product: 0718SGAS.txt :Issued: 2025 Jul 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 199 Issued at 0245Z on 18 Jul 2025 This report is compiled from data received at SWO on 17 Jul A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0035 0035 0035 500 0546 0546 0546 100 0841 0842 0843 300 1038 1038 1038 190 1045 1045 1046 130 1100 1103 1114 4142 N02E16 Sf 130 1122 1122 1122 150 1751 1751 1751 160 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached active levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 156 SSN 178 Afr/Ap 014/019 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.2e+05 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.20e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W0 degrees) 3 Hour K-indices: Boulder 3 3 3 4 4 3 2 2 Planetary 4 4 4 4 4 4 3 2 F. Comments: None.