:Product: 0526SGAS.txt :Issued: 2025 May 26 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 146 Issued at 0245Z on 26 May 2025 This report is compiled from data received at SWO on 25 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0146 0152 0157 4098 X1.1 280 170 0202 0202 0203 180 0627 0635 0638 4098 M1.7 1005 1018 1025 4098 S05W50 M3.4 1n 1246 1246 1246 110 1249 1249 1250 610 1618 1630 1636 4098 M8.9 580 160 1759 1759 1759 150 2150 2151 2151 380 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 133 SSN 093 Afr/Ap 008/??? X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.7e+05 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 2.60e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W0 degrees) 3 Hour K-indices: Boulder 2 2 3 2 3 3 1 1 Planetary 2 2 2 1 2 1 1 1 F. Comments: None.