:Product: Solar and Geophysical Activity Summary :Issued: 2012 Sep 27 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 271 Issued at 0245Z on 27 Sep 2012 This report is compiled from data received at SWO on 26 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: The greater than 10 MeV protons were slightly enhanced but well below threshold. C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to unsettled levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 139 SSN 113 Afr/Ap 006/007 X-ray Background B3.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.1e+06 GT 10 MeV 3.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.00e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 1 1 1 2 2 3 2 Planetary 0 1 0 0 2 2 3 3 F. Comments: None.