:Product: 0523SGAS.txt :Issued: 2023 May 23 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 143 Issued at 0245Z on 23 May 2023 This report is compiled from data received at SWO on 22 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0217 0226 0234 3305 N00E00 C3.5 Sf 690 1117 1117 1117 120 1331 1337 1343 3311 N18E24 M1.9 Sf 550 110 II 2050 2050 2050 440 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was unsettled to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 162 SSN 097 Afr/Ap 017/023 X-ray Background C1.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.2e+04 GT 10 MeV 2.2e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.20e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 5 4 3 3 4 4 3 3 Planetary 4 4 3 3 3 3 4 4 F. Comments: None