:Product: 20010228SGAS.txt :Issued: 2001 Feb 28 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 059 Issued at 0245Z on 28 Feb 2001 This report is compiled from data received at SWO on 27 Feb 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 mostly quiet to unsettled. An isolated period of active conditions occurred from 27/0600 - 0900Z. D. Stratwarm: STRATWARM ALERT/TUESDAY/STRATWARM EXISTS. DECAYING MAJOR WARMING, FURTHER DISTURBED CIRCULATION IN THE LOWER STRATOSPHERE. E. Daily Indices: (real-time preliminary/estimated values) 10 cm 131 SSN 090 Afr/Ap 008/013 X-ray Background B5.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+06 GT 10 MeV 2.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.00e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 3 4 3 3 1 1 1 Planetary 3 3 4 3 3 2 1 1 F. Comments: None