:Product: 1221SGAS.txt :Issued: 2006 Dec 21 0248 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 355 Issued at 0245Z on 21 Dec 2006 This report is compiled from data received at SWO on 20 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 at quiet to minor storm conditions. Activity was due to a recurrent coronal hole high speed stream. Solar wind speed at ACE has increased from approximately 600 km/s to 740 km/s. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 072 SSN 000 Afr/Ap 012/024 X-ray Background LT A1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+07 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W136 degrees) Daily Electron Fluence GT 2 MeV 3.80e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 4 4 3 3 4 3 3 4 Planetary 4 4 3 2 4 3 5 4 F. Comments: None