:Product: 0421SGAS.txt :Issued: 2013 Apr 21 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 111 Issued at 0245Z on 21 Apr 2013 This report is compiled from data received at SWO on 20 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0754 0802 0810 1726 N14E02 C1.4 Sf 110 1803 1803 1803 110 2209 2213 2218 1726 N13W05 C1.1 Sf 170 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at quiet levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 105 SSN 101 Afr/Ap 002/004 X-ray Background B2.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.9e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.20e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 0 0 1 2 2 2 1 1 Planetary 0 0 0 2 2 2 1 1 F. Comments: None