:Product: 0428SGAS.txt :Issued: 2017 Apr 28 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 118 Issued at 0245Z on 28 Apr 2017 This report is compiled from data received at SWO on 27 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet to unsettled. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 078 SSN 023 Afr/Ap 010/008 X-ray Background A9.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.1e+07 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.80e+09 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 3 4 1 1 2 2 2 Planetary 2 3 3 0 1 1 2 2 F. Comments: The GOES-13 greater than 2 MeV electron fluence reached very high levels.