:Product: 0412SGAS.txt :Issued: 2025 Apr 12 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 102 Issued at 0245Z on 12 Apr 2025 This report is compiled from data received at SWO on 11 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0113 0113 0113 110 1139 1139 1139 130 1149 1149 1149 130 1640 1650 1701 4055 M1.0 1734 1734 1734 4055 150 1825 1825 1825 100 1828 1828 1829 170 1832 1834 1834 120 1854 1859 1911 4055 C6.8 1300 1953 1953 1953 110 2054 2054 2054 500 2208 2220 2233 4055 N07W50 M1.0 Sf B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 170 SSN 120 Afr/Ap 014/018 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.6e+05 GT 10 MeV 1.5e+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 4 3 2 3 3 3 4 3 Planetary 4 3 2 2 3 2 3 4 F. Comments: None.