:Product: 0527SGAS.txt :Issued: 2007 May 27 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 147 Issued at 0245Z on 27 May 2007 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 ranged from quiet to active due to the continued influence of a geoeffective coronal hole high speed stream. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 068 SSN 000 Afr/Ap 012/016 X-ray Background LT A1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.5e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W136 degrees) Daily Electron Fluence GT 2 MeV 5.80e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 4 3 4 3 3 2 2 Planetary 4 4 3 3 3 3 3 2 F. Comments: The greater than 2 MeV electron fluence at geosynchronous orbit reached high levels today.