:Product: 0523SGAS.txt :Issued: 2013 May 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 143 Issued at 0245Z on 23 May 2013 This report is compiled from data received at SWO on 22 May A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1308 1332 1408 1745 N15W70 M5.0 3n 140 370 II/IV 2224 2224 2224 320 2231 2231 2231 110 B. Proton Events: A Greater than 10 MeV Proton event occurred at 22/1420Z, reached a peak flux of 1091 pfu, and is ongoing at this time. A Greater than 100 MeV Proton event occurred at 22/1455Z, reached a peak flux of 3 pfu, and was also ongoing at this time. C. Geomagnetic Activity Summary: The geomagnetic field was quiet to unsettled with an isolated active period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 133 SSN 107 Afr/Ap 010/012 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.9e+07 GT 10 MeV 8.3e+06 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 1.60e+07 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 3 2 2 2 3 3 2 2 Planetary 3 2 2 2 3 3 3 3 F. Comments: None