:Product: 0528SGAS.txt :Issued: 2023 May 28 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 148 Issued at 0245Z on 28 May 2023 This report is compiled from data received at SWO on 27 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0015 0015 0031 3315 S18E06 Sf 110 0035 0035 0036 290 0046 0046 0046 290 0056 0057 0057 1000 0100 0100 0100 680 0104 0104 0104 1100 0126 0126 0126 670 0129 0129 0131 2300 0137 0137 0137 630 0213 0213 0213 910 0432 0435 0441 3314 N14W39 C8.4 Sf 7200 120 II 0743 0743 0746 3315 S15E04 Sf 120 0913 0913 0914 150 0928 0933 0933 220 1308 1308 1308 200 1309 1312 1319 3315 S17W01 Sf 350 1345 1345 1345 120 1912 1924 1930 3312 C6.2 II 1933 1933 1941 350 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 157 SSN 125 Afr/Ap 005/006 X-ray Background B8.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+04 GT 10 MeV 2.4e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.60e+08 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 1 2 2 3 2 2 Planetary 1 2 1 1 2 1 2 2 F. Comments: None.