:Product: 0413SGAS.txt :Issued: 2010 Apr 13 0246 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 103 Issued at 0245Z on 13 Apr 2010 This report is compiled from data received at SWO on 12 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 ranged from quiet to severe storm levels during the past 24 hours. Severe storm conditions occurred 12/00-03Z due to a strong substorm. Active to minor storm levels occurred 12/03-09Z, and quiet to unsettled conditions persisted throughout the remainder of the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 075 SSN 014 Afr/Ap 018/022 X-ray Background A2.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.9e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 1.40e+07 e/(cm2-ster-day) (GOES-11 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 7 4 4 2 1 3 2 1 Planetary 6 4 3 1 1 3 2 1 F. Comments: None