:Product: 1220SGAS.txt :Issued: 2011 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 354 Issued at 0245Z on 20 Dec 2011 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 0815 0815 0815 370 1241 1242 1242 120 1340 1340 1340 180 1405 1413 1415 1376 B8.1 340 1428 1428 1428 100 1740 1740 1740 150 1746 1746 1746 120 1820 1820 1820 420 1948 1948 1948 170 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet to unsettled. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 128 SSN 133 Afr/Ap 006/006 X-ray Background B3.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.0e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 1 1 1 2 3 2 Planetary 1 1 1 0 1 2 3 2 F. Comments: None.