:Product: 0401SGAS.txt :Issued: 2025 Apr 01 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 091 Issued at 0245Z on 01 Apr 2025 This report is compiled from data received at SWO on 31 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0019 0019 0019 100 0027 0027 0027 150 1016 1024 1037 4048 M1.2 1435 1436 1436 140 2212 2212 2212 130 B. Proton Events: A greater than 10 MeV proton event is in progress. Peak flux value reached has been 85.7 pfu. C. Geomagnetic Activity Summary: The geomagnetic field was uiet to unsettled. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 172 SSN 151 Afr/Ap 008/009 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.1e+06 GT 10 MeV 1.5e+06 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-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 2 3 2 4 2 1 Planetary 1 1 2 2 2 3 3 2 F. Comments: None