:Product: 0527SGAS.txt :Issued: 2011 May 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 147 Issued at 0245Z on 27 May 2011 This report is compiled from data received at SWO on 26 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was mostly quiet with one active period at 26/18Z. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 083 SSN 040 Afr/Ap 004/007 X-ray Background A7.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.3e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 7.60e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 2 2 1 2 4 2 2 Planetary 2 2 1 0 2 2 2 2 F. Comments: None