:Product: 0404SGAS.txt :Issued: 2026 Apr 04 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 094 Issued at 0245Z on 04 Apr 2026 This report is compiled from data received at SWO on 03 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0745 0756 0758 4409 M1.3 1246 1250 1252 M1.3 1731 1736 1739 4409 S02E02 C1.7 Sf 190 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached severe storm levels following the arrival of a CME that left the Sun on 01 Apr. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 136 SSN 118 Afr/Ap 025/049 X-ray Background B8.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.6e+07 GT 10 MeV 3.8e+05 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 9.10e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 3 3 5 4 3 6 5 4 Planetary 4 4 5 4 4 7 6 6 F. Comments: None