:Product: 0328SGAS.txt :Issued: 2026 Mar 28 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 087 Issued at 0245Z on 28 Mar 2026 This report is compiled from data received at SWO on 27 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1905 1913 1922 4401 N24E03 C2.5 Sf 370 1924 1924 1924 130 2016 2016 2016 190 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 156 SSN 152 Afr/Ap 006/006 X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.10e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 2 2 2 1 3 2 1 1 Planetary 2 2 2 2 1 2 2 ? F. Comments: None.