:Product: 0823SGAS.txt :Issued: 2017 Aug 23 0245 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar and Geophysical Activity Summary SGAS Number 235 Issued at 0245Z on 23 Aug 2017 This report is compiled from data received at SWO on 22 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0415 0420 0424 2671 N08W30 B6.2 Sf 110 0831 0836 0839 B5.5 940 0912 0912 0912 210 1109 1113 1116 2671 N09W33 C1.0 Sf 210 1502 1502 1502 100 1506 1506 1506 100 1541 1541 1541 190 1626 1626 1626 120 1629 1629 1629 190 1710 1710 1710 110 1722 1722 1722 140 1735 1735 1738 2671 N09W37 Sf 120 1932 1937 1943 2671 N10W38 C1.9 Sf 120 2357 2357 2357 320 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field began the period at Major storm levels, before decreasing to quiet to unsettled levels by the end of the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 090 SSN 048 Afr/Ap 016/023 X-ray Background B1.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.5e+07 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.30e+08 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 5 5 3 2 2 3 2 3 Planetary 6 5 3 2 2 2 1 3 F. Comments: None