:Product: 1219SGAS.txt :Issued: 2023 Dec 19 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 19 Dec 2023 This report is compiled from data received at SWO on 18 Dec A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0023 0026 0031 3519 C2.2 260 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field reached minor storm levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 161 SSN 137 Afr/Ap 016/020 X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.0e+06 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.20e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 3 5 5 4 3 3 3 Planetary 2 3 5 4 4 3 2 4 F. Comments: None