:Product: 20040802SGAS.txt :Issued: 2004 Aug 02 0250 UT # 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 215 Issued at 0245Z on 02 Aug 2004 This report is compiled from data received at SWO on 01 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 quiet to active levels. A shock passage was observed by the ACE spacecraft at approximately 01/0130Z. This transient is believed to be the result of the long duration C2 x-ray flare that peaked at 29/1304Z from old Region 652 (N08, L=348) while it was exiting the west limb. The Bz component of the interplanetary magnetic field went south for a brief period of time allowing for observed active periods between 01/0130 and 0300Z. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 083 SSN 040 Afr/Ap 011/008 X-ray Background A9.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+07 GT 10 MeV 1.8e+05 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W97 degrees) Daily Electron Fluence GT 2 MeV 3.10e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 3 1 1 2 3 2 3 Planetary 3 2 1 1 2 3 2 2 F. Comments: None