:Product: 0920SGAS.txt :Issued: 2011 Sep 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 263 Issued at 0245Z on 20 Sep 2011 This report is compiled from data received at SWO on 19 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0719 0737 0914 1296 C6.2 240 1322 1322 1323 410 1535 1541 1547 1301 N24E68 C6.9 Sn 290 2101 2101 2101 110 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at quiet levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 141 SSN 128 Afr/Ap 002/003 X-ray Background B8.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.3e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.90e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 0 1 0 1 2 1 1 Planetary 1 0 1 0 1 1 1 1 F. Comments: None