:Product: 0520SGAS.txt :Issued: 2023 May 20 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 140 Issued at 0245Z on 20 May 2023 This report is compiled from data received at SWO on 19 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0041 0048 0054 3311 N18E74 M5.3 1n 0305 0312 0323 3311 N19E72 M1.6 Sn 0449 0500 0510 3311 N19E72 M2.5 1n 1945 2006 2014 3311 N16E61 M2.3 Sf 2014 2026 2038 3311 M2.7 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached active levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 165 SSN 155 Afr/Ap 010/008 X-ray Background C1.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.1e+04 GT 10 MeV 2.5e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.00e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder ? ? ? ? ? ? ? ? Planetary 0 0 0 1 1 2 4 4 F. Comments: Boulder mag missing values.