:Product: 0413SGAS.txt :Issued: 2025 Apr 13 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 103 Issued at 0245Z on 13 Apr 2025 This report is compiled from data received at SWO on 12 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0441 0445 0455 4055 M1.1 0536 0549 0555 4055 N05W57 M1.2 Sf 0711 0719 0722 4055 N06W56 M1.0 Sf 1105 1117 1125 4055 M2.0 1135 1143 1145 4055 M2.7 1233 1240 1252 4055 M2.3 1500 1512 1519 4055 N07W61 M1.3 Sf 2302 2307 2313 4054 S13W79 1f 110 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field reached minor storm levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 165 SSN 103 Afr/Ap 013/??? X-ray Background C3.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.3e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 5.70e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 2 3 3 2 3 3 4 Planetary 3 3 3 3 3 4 4 5 F. Comments: None