:Product: 20030426SGAS.txt :Issued: 2003 Apr 26 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 116 Issued at 0245Z on 26 Apr 2003 This report is compiled from data received at SWO on 25 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0523 0540 0558 0346 N14E79 M1.2 Sf 100 82 II 0723 0723 0723 110 0927 0927 0927 290 1945 1954 1959 0338 N19W58 C7.5 Sf 330 2013 2013 2013 100 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at predominantly active to minor storm levels. High speed solar wind speeds along with embedded transient activity are believed to be responsible for the elevated conditions. The greater than 2 MeV electron fluxes at geosynchronous orbit reached high levels again today. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 144 SSN 173 Afr/Ap 026/032 X-ray Background B6.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.0e+06 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 2.20e+08 e/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 5 4 4 4 4 4 3 3 Planetary 4 5 5 5 3 4 3 5 F. Comments: None