:Product: 20001128SGAS.txt :Issued: 2000 Nov 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 333 Issued at 0245Z on 28 Nov 2000 This report is compiled from data received at SWO on 27 Nov A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0828 0828 0829 180 1733 1733 1733 150 2348 2348 2348 130 2349 2352 2354 9242 N19E27 C4.0 Sn 640 B. Proton Events: The greater than 10 MeV proton event that began at 24/1520Z, reaching a high value of 923 pfu at 26/1955Z, dropped below threshold level at 27/1435 and hovered just below threshold for the remainder of the period. C. Geomagnetic Activity Summary: The geomagnetic field was mostly at minor to major storm levels for the first half of the period, and dropped off to mostly unsettled to active levels for the second half of the period. D. Stratwarm: None. E. Daily Indices: (real-time preliminary/estimated values) 10 cm 192 SSN 121 Afr/Ap 041/038 X-ray Background B8.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.3e+08 GT 10 MeV 1.3e+07 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.70e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 5 6 6 5 4 3 4 2 Planetary 6 5 6 4 4 3 3 4 F. Comments: None