:Product: 0526SGAS.txt :Issued: 2023 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 2023 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 0405 0405 0406 450 0435 0443 0454 3314 N15W19 C3.7 Sf 320 0529 0541 0552 3311 N21W06 C7.4 1n 360 0741 0748 0752 3311 N18W12 C1.6 Sf 110 1031 1031 1031 120 1054 1110 1125 3314 N15W22 C3.2 Sf 480 1153 1154 1154 1100 1250 1254 1258 3310 S15W17 C1.3 Sf 290 1418 1430 1437 3314 N14W25 C1.8 Sf 290 1437 1446 1453 3312 S25W04 M1.1 1n 100 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was unsettled. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 152 SSN 121 Afr/Ap 011/010 X-ray Background B8.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.1e+04 GT 10 MeV 2.3e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+08 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 3 3 3 2 3 2 2 Planetary 3 2 3 3 3 2 2 2 F. Comments: None.