:Product: 1220SGAS.txt :Issued: 2024 Dec 20 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 355 Issued at 0245Z on 20 Dec 2024 This report is compiled from data received at SWO on 19 Dec A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0649 0649 0649 100 1021 1038 1057 3924 S19W72 M1.6 Sf 1527 1534 1539 3928 M3.8 1856 1900 1904 3928 M1.7 2249 2249 2250 220 2257 2257 2257 320 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was quiet to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 175 SSN 096 Afr/Ap 009/008 X-ray Background C2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.8e+05 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.10e+07 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 2 1 1 1 3 2 2 Planetary 4 2 1 0 2 2 2 1 F. Comments: None