:Product: 1221SGAS.txt :Issued: 2020 Dec 21 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 356 Issued at 0245Z on 21 Dec 2020 This report is compiled from data received at SWO on 20 Dec A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: Field conditions were at quiet levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 084 SSN 011 Afr/Ap 004/003 X-ray Background A6.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.7e+05 GT 10 MeV 4.4e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.30e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 2 2 2 2 1 1 Planetary 0 1 2 1 1 0 0 1 F. Comments: None