:Product: 0516SGAS.txt :Issued: 2013 May 16 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 136 Issued at 0245Z on 16 May 2013 This report is compiled from data received at SWO on 15 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0125 0148 0158 1748 N12E64 X1.2 2n 430 440 II/IV B. Proton Events: A Greater than 10 MeV Proton event occurred at 15/1535Z, reached a peak flux of 23 pfu, and was ongoing as of the writing of this summary. C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to unsettled levels with a brief period of minor storming detected at high latitudes. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 146 SSN 186 Afr/Ap 010/008 X-ray Background B7.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.8e+06 GT 10 MeV 8.1e+05 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.00e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 1 2 3 3 3 2 2 Planetary 1 1 2 3 3 2 2 1 F. Comments: None