:Product: 0627SGAS.txt :Issued: 2018 Jun 27 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 178 Issued at 0245Z on 27 Jun 2018 This report is compiled from data received at SWO on 26 Jun 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 levels, before returning to quiet to active levels by the end of the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 071 SSN 012 Afr/Ap 017/028 X-ray Background A3.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.5e+05 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) Daily Electron Fluence GT 2 MeV 4.20e+07 e/(cm2-ster-day) (GOES-15 satellite synchronous orbit W135 degrees) 3 Hour K-indices: Boulder 6 3 3 3 3 3 3 2 Planetary 6 4 3 4 4 3 4 2 F. Comments: None