:Product: 0521SGAS.txt :Issued: 2006 May 21 0248 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Solar and Geophysical Activity Summary SGAS Number 141 Issued at 0245Z on 21 May 2006 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 active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 076 SSN 029 Afr/Ap 005/007 X-ray Background A2.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+05 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W101 degrees) Daily Electron Fluence GT 2 MeV 7.60e+06 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 2 4 1 2 2 2 Planetary 2 2 2 3 1 2 2 2 F. Comments: None