:Product: 0427SGAS.txt :Issued: 2013 Apr 27 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 117 Issued at 0245Z on 27 Apr 2013 This report is compiled from data received at SWO on 26 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0035 0035 0035 200 0208 0208 0208 110 0344 0344 0344 150 0547 0547 0547 100 0605 0605 0605 110 1202 1202 1202 110 2059 2117 2134 1726 C2.7 140 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field has been at quiet to minor storm levels with an isolated major storm period observed at high latitudes. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 122 SSN 104 Afr/Ap 018/021 X-ray Background B6.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.6e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.50e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 4 3 3 3 2 3 3 Planetary 3 5 3 3 3 3 3 4 F. Comments: None