:Product: 20030918SGAS.txt :Issued: 2003 Sep 18 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 261 Issued at 0245Z on 18 Sep 2003 This report is compiled from data received at SWO on 17 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None C. Geomagnetic Activity Summary: Active to severe storm. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 106 SSN 083 Afr/Ap 025/061 X-ray Background B3.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.2e+06 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W110 degrees) Daily Electron Fluence GT 2 MeV 5.50e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 5 5 5 5 5 5 4 5 Planetary 5 5 5 7 7 4 4 5 F. Comments: None