:Product: 20030102SGAS.txt :Issued: 2003 Jan 02 0245 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 002 Issued at 0245Z on 02 Jan 2003 This report is compiled from data received at SWO on 01 Jan A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1020 1020 1020 180 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was quiet to unsettled D. Stratwarm: STRATWARM ALERT/WEDNESDAY/STRATWARM EXISTS. STRONG WARMING CONTINUES IN THE MIDDLE AND UPPER STRATOSPHERE, EXTENDING FROM NORTHEASTERN ASIA TO NORTHERN EUROPE AND GREENLAND BUT WEAKENING. TEMPERATURE GRADIENT BETWEEN 60N AND THE POLE REVERSED DOWN TO ALMOST 20 HPA AND NET EASTERLY WINDS AT 60N AT 1 HPA E. Daily Indices: (real-time preliminary/estimated values) 10 cm 115 SSN 047 Afr/Ap 010/010 X-ray Background B1.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.0e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 9.50e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 2 3 2 2 2 2 2 Planetary 2 2 3 3 3 3 2 2 F. Comments: None