:Product: 20010918SGAS.txt :Issued: 2001 Sep 18 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 261 Issued at 0245Z on 18 Sep 2001 This report is compiled from data received at SWO on 17 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0146 0146 0147 150 0818 0825 0834 9616 S14E04 M1.5 2n 910 460 II 1514 1516 1519 9616 S14E02 Sf 110 1544 1550 1554 9608 S32W73 M8.1 1n 380 1800 1800 1800 150 1938 1942 1946 C3.3 370 2101 2108 2111 9616 S11W06 M1.0 1n 1200 110 II 2132 2146 2155 9608 S31W73 M1.0 2n B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field has been quiet to unsettled. D. Stratwarm: None. E. Daily Indices: (real-time preliminary/estimated values) 10 cm 199 SSN 159 Afr/Ap 012/010 X-ray Background C2.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 4.00e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 3 3 3 3 3 3 Planetary 1 2 3 3 3 3 3 3 F. Comments: None.