:Product: 20020730SGAS.txt :Issued: 2002 Jul 30 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 211 Issued at 0245Z on 30 Jul 2002 This report is compiled from data received at SWO on 29 Jul A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0019 0023 0027 M1.4 74 0229 0238 0246 M4.8 860 380 II 1027 1044 1113 M4.7 100 110 1753 1756 1758 C3.8 1000 B. Proton Events: None C. Geomagnetic Activity Summary: Geomagnetic activity was at quiet to unsettled levels until a sudden impulse (SI) occurred at 29/1330 UTC (9nT, Boulder USGS magnetometer). Activity increased to unsettled to active levels following the SI. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 234 SSN 304 Afr/Ap 013/011 X-ray Background C4.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.4e+06 GT 10 MeV 1.6e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 7.20e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 3 2 1 4 4 3 2 Planetary 2 3 2 2 4 3 3 2 F. Comments: Afr estimated based on Boulder USGS magnetometer data.