:Product: 1228SGAS.txt :Issued: 2021 Dec 28 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 362 Issued at 0245Z on 28 Dec 2021 This report is compiled from data received at SWO on 27 Dec A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1224 1236 1256 2920 B8.9 130 1421 1421 1421 110 2328 2335 2342 2918 C2.2 130 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic fiield was mostly quiet with an isolated active poeriod. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 124 SSN 085 Afr/Ap 008/009 X-ray Background B4.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.3e+06 GT 10 MeV 4.4e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.10e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 1 2 3 4 3 2 1 Planetary 1 1 2 2 4 2 1 1 F. Comments: None