:Product: 0318SGAS.txt :Issued: 2021 Mar 18 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 077 Issued at 0245Z on 18 Mar 2021 This report is compiled from data received at SWO on 17 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: Levels were mostly quiet with an isolated unsettled period the second half of the day. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 078 SSN 012 Afr/Ap 002/004 X-ray Background A3.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+05 GT 10 MeV 4.4e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.90e+08 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 0 1 0 2 2 1 1 Planetary 2 0 0 0 1 3 2 1 F. Comments: None