:Product: 0425SGAS.txt :Issued: 2011 Apr 25 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 115 Issued at 0245Z on 25 Apr 2011 This report is compiled from data received at SWO on 24 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0709 0709 0709 100 1349 1350 1353 1193 N19W67 4f B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was mostly quiet. An isolated period with unsettled to active levels was observed between 24/2100-2400Z. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 117 SSN 078 Afr/Ap 006/006 X-ray Background B3.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+05 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) Daily Electron Fluence GT 2 MeV 5.00e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 1 2 1 1 1 2 2 3 Planetary 1 1 0 1 1 2 1 3 F. Comments: None