:Product: 0518SGAS.txt :Issued: 2019 May 18 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 138 Issued at 0245Z on 18 May 2019 This report is compiled from data received at SWO on 17 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 was atquiet to unsettled levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 072 SSN 013 Afr/Ap 007/005 X-ray Background A8.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.4e+05 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W128 degrees) Daily Electron Fluence GT 2 MeV 1.80e+07 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W128 degrees) 3 Hour K-indices: Boulder 3 2 2 1 2 3 1 1 Planetary 3 1 1 1 2 1 0 1 F. Comments: None.