:Product: 20041226SGAS.txt :Issued: 2004 Dec 26 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 361 Issued at 0245Z on 26 Dec 2004 This report is compiled from data received at SWO on 25 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 to active with an isolated period of minor storming from 0300Z to 0600Z on 25 December. Active conditions due to the onset of a geoeffective coronal hole high speed stream. D. Stratwarm: None. E. Daily Indices: (real-time preliminary/estimated values) 10 cm 093 SSN 026 Afr/Ap 010/012 X-ray Background B1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.0e+06 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W106 degrees) Daily Electron Fluence GT 2 MeV 1.40e+06 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 5 4 1 1 2 2 2 Planetary 3 4 4 2 1 1 2 2 F. Comments: None.