:Product: 0418SGAS.txt :Issued: 2011 Apr 18 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 108 Issued at 0245Z on 18 Apr 2011 This report is compiled from data received at SWO on 17 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0031 0039 0040 1190 N15W40 Sf 230 0040 0040 0040 110 0137 0137 0137 120 0215 0215 0215 140 0418 0418 0418 100 2054 2054 2059 150 B. Proton Events: None C. Geomagnetic Activity Summary: Geomagnetic activity was quiet at all latitudes. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 114 SSN 067 Afr/Ap 002/005 X-ray Background B4.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.3e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.60e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 1 1 1 2 2 1 1 Planetary 0 1 1 1 2 2 2 2 F. Comments: None