:Product: 0410SGAS.txt :Issued: 2007 Apr 10 0247 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 100 Issued at 0245Z on 10 Apr 2007 This report is compiled from data received at SWO on 09 Apr 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 was quiet to active. The magnetic structure of the solar wind appears to be consistent with a co-rotating interaction region coupled with a solar sector boundary crossing. Solar wind increased from around 350 km/s to 480 km/s by approximately 09/1700 UTC. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 070 SSN 000 Afr/Ap 008/009 X-ray Background LT A1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 6.70e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 3 4 2 1 1 0 1 Planetary 4 3 3 1 1 0 1 1 F. Comments: None