:Product: 0520SGAS.txt :Issued: 2015 May 20 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 140 Issued at 0245Z on 20 May 2015 This report is compiled from data received at SWO on 19 May 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 reached major storm conditions for the first period of the day, in response to a brief transient interaction, then decreased to quiet conditions for the remainder of the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 110 SSN 084 Afr/Ap 014/018 X-ray Background B3.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+05 GT 10 MeV 1.0e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.00e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 4 2 3 2 3 3 2 Planetary 5 4 2 2 2 2 3 2 F. Comments: None