:Product: 20031028SGAS.txt :Issued: 2003 Oct 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 301 Issued at 0245Z on 28 Oct 2003 This report is compiled from data received at SWO on 27 Oct A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0249 0249 0249 180 0412 0439 0508 0484 N00W44 M1.2 Sf 0557 0654 0733 0486 S15E44 X1.2 3b 14000 4000 II/IV 0751 0833 0924 0484 N00W45 M2.7 2f 1000 1100 IV 0847 0847 0850 0000 N08E17 Sf IV 0921 0927 0932 0486 S16E26 M5.0 Sf 65 1134 1135 1135 290 1227 1243 1252 0486 S17E25 M6.7 Sf 420 59 1906 1907 1908 190 1948 1957 2016 0484 N07W50 C9.0 1n 490 2146 2151 2205 0488 N08E09 M1.9 Sn 2312 2317 2322 0488 N10E10 C4.1 Sf 400 2356 2356 2357 250 B. Proton Events: The greater than 10 MeV flux at geosynchronous orbit was above 10 pfu until approximately 1910 UTC on 27 October. C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to active levels. D. Stratwarm: None. E. Daily Indices: (real-time preliminary/estimated values) 10 cm 257 SSN 238 Afr/Ap 014/015 X-ray Background C3.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.0e+07 GT 10 MeV 9.6e+06 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W108 degrees) Daily Electron Fluence GT 2 MeV 1.20e+07 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 4 4 4 3 3 4 2 1 Planetary 3 3 4 3 2 3 3 1 F. Comments: None.