:Product: 20030419SGAS.txt :Issued: 2003 Apr 19 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 109 Issued at 0245Z on 19 Apr 2003 This report is compiled from data received at SWO on 18 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0212 0212 0212 130 1950 1958 2002 0337 M1.1 41 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at unsettled to active levels with an isolated quiet period from 0300 UTC to 0600 UTC. The coronal hole induced high speed solar wind stream continues. The greater than 2 MeV electron fluxes at geo-synchronous orbit reached high levels today. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 108 SSN 051 Afr/Ap 019/020 X-ray Background B2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.6e+06 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 3.80e+08 e/(cm2-ster-day) (GOES-10 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 2 4 4 4 4 3 2 3 Planetary 2 5 4 4 4 3 3 3 F. Comments: None