:Product: 0604SGAS.txt :Issued: 2026 Jun 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 155 Issued at 0245Z on 04 Jun 2026 This report is compiled from data received at SWO on 03 Jun A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0057 0103 II 0122 0500 IV 0122 0136 0143 4455 N13W11 M9.3 Sf 55000 360 0649 0700 0707 4455 N14W13 M7.7 1b 880 540 II 1119 1128 1135 X1.0 640 250 1137 1137 1216 4455 N13W15 1n IV 1527 1536 1545 C1.7 170 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field reached unsettled levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 147 SSN 141 Afr/Ap 011/010 X-ray Background B9.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.2e+05 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.40e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 3 2 1 2 2 3 3 3 Planetary 3 2 2 2 2 2 2 3 F. Comments: None