:Product: 20011107SGAS.txt :Issued: 2001 Nov 07 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 311 Issued at 0245Z on 07 Nov 2001 This report is compiled from data received at SWO on 06 Nov A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0256 0300 0303 9687 S19E10 M2.0 1b 160 II 0301 0301 0304 9690 S19E65 Sf 370 0620 0625 0629 9690 M1.2 0642 0642 0642 210 0707 0707 0716 9687 S19E08 Sf 190 1158 1227 1303 9690 C5.9 250 1345 1351 1405 9687 S17E05 M1.2 Sf 91 1507 1549 1708 9690 S18E64 M1.1 Sf 1759 1759 1800 140 2009 2011 2014 210 2158 2158 2200 210 2230 2231 2231 150 B. Proton Events: The greater than 10 MeV proton event peaked at 31,700 pfu at 06/0215 UTC. The greater than 100 MeV proton event peaked at 253 pfu at 06/0220 UTC. Both proton events levels declined sharply during the period but continued through the end of the day. A polar cap absorption event remained in effect. C. Geomagnetic Activity Summary: The geomagnetic field was at unsettled to severe storm conditions. The full-halo coronal mass ejection (CME) from the 04 November event impacted the geomagnetic field at 06/0150 UTC. This was indicated by a 90 nT sudden impulse as measured by the USGS Boulder magnetometer. Severe geomagnetic storming occurred between 06/0000 and 06/0600 UTC and 15-1800 UTC. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 237 SSN 189 Afr/Ap 075/112 X-ray Background C2.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.4e+09 GT 10 MeV 6.2e+08 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.90e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 7 7 6 4 4 7 4 3 Planetary 8 8 7 5 6 7 5 5 F. Comments: None