:Product: 0521SGAS.txt :Issued: 2008 May 21 0247 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 142 Issued at 0245Z on 21 May 2008 This report is compiled from data received at SWO on 20 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 quiet to unsettled. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 069 SSN 023 Afr/Ap 010/010 X-ray Background LT A1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.3e+06 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 3.10e+06 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 2 3 2 2 3 3 3 Planetary 2 2 3 1 2 3 2 3 F. Comments: None