:Product: 0530SGAS.txt :Issued: 2021 May 30 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 150 Issued at 0245Z on 30 May 2021 This report is compiled from data received at SWO on 29 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: The greater than 10 MeV proton event that began at 29/0300Z, reached a peak flux of 15 pfu at 29/0320Z and ended at 29/0540Z. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 076 SSN 026 Afr/Ap 007/005 X-ray Background B2.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.4e+07 GT 10 MeV 3.6e+05 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.30e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 1 1 2 2 2 2 2 Planetary 0 1 1 2 1 1 2 2 F. Comments: None.