:Product: 20040828SGAS.txt :Issued: 2004 Aug 28 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 241 Issued at 0245Z on 28 Aug 2004 This report is compiled from data received at SWO on 27 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1817 1817 1821 200 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to unsettled levels. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 091 SSN 033 Afr/Ap 006/008 X-ray Background B1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W98 degrees) Daily Electron Fluence GT 2 MeV 2.50e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 1 2 1 2 2 2 2 Planetary 3 1 1 2 2 3 2 3 F. Comments: The ACE spacecraft orbit will bring ACE to its closest approach with the Sun on August 30, 2004. During that time possible solar radio noise may interfere with spacecraft telemetry resulting in the loss of real time solar wind plasma, magnetic field, and particle data.