:Product: 0909SGAS.txt :Issued: 2017 Sep 09 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 252 Issued at 0245Z on 09 Sep 2017 This report is compiled from data received at SWO on 08 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0127 0127 0127 770 0136 0140 0142 2673 S07W55 C5.3 Sf 3400 0219 0224 0229 2673 S09W54 M1.3 1f 0339 0343 0345 2673 S06W55 M1.2 Sf 15000 0435 1658 IV 0531 0548 0553 2673 S09W59 C8.3 Sf 5900 350 0624 0627 0629 2673 C2.9 1300 0635 0638 0641 2673 S08W61 C1.7 Sf 380 0740 0749 0758 2673 S10W57 M8.1 2b 69 0849 0850 0850 630 1045 1049 1051 2673 C1.6 670 1054 1054 1054 2000 1209 1213 1215 2673 C5.9 4400 1255 1255 1255 230 1322 1322 1322 310 1353 1353 1353 1800 1401 1402 1404 3000 1509 1547 1604 2673 S08W68 M2.9 1n 450 1657 1657 1658 310 1701 1701 1701 320 1806 1807 1815 2673 S09W63 Sf 320 1911 1911 1912 150 1914 1914 1914 100 1917 1917 1918 280 1922 1922 1922 130 1953 1959 1959 770 2238 2238 2240 120 2316 2321 2323 2673 C2.0 860 2333 2345 2356 2673 M2.1 IV 2350 2359 0014 2673 S09W50 M3.9 2b IV B. Proton Events: The greater than 10 MeV proton event that began at 05/0030Z, reached a maximum of 844 pfu at 08/0035Z, crossed below the 100 pfu threshold at 08/0620Z. Protons are currently around the 10 pfu threshold. C. Geomagnetic Activity Summary: The geomagnetic field was at active to severe storm levels due to CME effects. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 117 SSN 089 Afr/Ap 050/117 X-ray Background B8.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.1e+08 GT 10 MeV 6.7e+06 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) Daily Electron Fluence GT 2 MeV 4.40e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 7 4 4 4 7 5 4 4 Planetary 8 4 4 4 9 8 7 4 F. Comments: None.