:Product: 0522SGAS.txt :Issued: 2010 May 22 0246 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 22 May 2010 This report is compiled from data received at SWO on 21 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 at quiet to unsettled levels until 21/0300Z. Activity decreased to quiet levels at all latitudes for the rest of the day. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 071 SSN 015 Afr/Ap 004/005 X-ray Background A2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+05 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.40e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 1 2 1 1 1 1 1 Planetary 3 1 2 0 1 1 1 1 F. Comments: None