:Product: 0527SGAS.txt :Issued: 2025 May 27 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 147 Issued at 0245Z on 27 May 2025 This report is compiled from data received at SWO on 26 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0218 0229 0241 4098 C5.6 490 1250 1306 1315 4098 S05W67 M2.9 2n 1327 1337 1344 4100 N11E70 M1.4 1f 2000 II 1543 1543 1543 120 2050 2050 2050 140 B. Proton Events: None C. Geomagnetic Activity Summary: Field activity was at quiet to unsettled levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 133 SSN 113 Afr/Ap 008/??? X-ray Background B7.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.2e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.00e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W0 degrees) 3 Hour K-indices: Boulder 2 2 2 2 4 3 2 2 Planetary ? ? ? ? ? ? ? ? F. Comments: None