:Product: 1218SGAS.txt :Issued: 2020 Dec 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 353 Issued at 0245Z on 18 Dec 2020 This report is compiled from data received at SWO on 17 Dec A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 082 SSN 012 Afr/Ap 002/000 X-ray Background A4.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.2e+05 GT 10 MeV 4.5e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.90e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 0 0 0 0 2 1 0 Planetary 0 0 0 0 0 0 0 1 F. Comments: None