:Product: 20041220SGAS.txt :Issued: 2004 Dec 20 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 355 Issued at 0245Z on 20 Dec 2004 This report is compiled from data received at SWO on 19 Dec 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. Solar wind speed was in gradual decline and finished the period near 400 km/s. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 094 SSN 029 Afr/Ap 003/004 X-ray Background B1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.8e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W105 degrees) Daily Electron Fluence GT 2 MeV 7.80e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 1 0 1 1 1 2 2 1 Planetary 1 0 1 1 1 2 1 1 F. Comments: None