:Product: 20030824SGAS.txt :Issued: 2003 Aug 24 0245 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 236 Issued at 0245Z on 24 Aug 2003 This report is compiled from data received at SWO on 23 Aug 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 unsettled to major storm levels. A fifteen hour period of minor storm with one period of major storm levels was observed today. The greater than 2 MeV electron fluence at geosynchronous orbit reached high levels today. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 120 SSN 125 Afr/Ap 042/044 X-ray Background B2.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.0e+06 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W112 degrees) Daily Electron Fluence GT 2 MeV 6.00e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 5 6 5 5 5 4 3 4 Planetary 4 5 7 5 5 3 4 4 F. Comments: None