:Product: 0316SGAS.txt :Issued: 2026 Mar 16 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 075 Issued at 0245Z on 16 Mar 2026 This report is compiled from data received at SWO on 15 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0921 0939 0952 4392 S16E33 M1.0 Sf 0935 0936 0936 110 2037 2045 2106 3600 B. Proton Events: None. C. Geomagnetic Activity Summary: Field conditions were at quiet to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 109 SSN 093 Afr/Ap 014/017 X-ray Background B4.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.5e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.80e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 4 2 3 4 3 3 2 3 Planetary 4 2 2 4 3 3 3 4 F. Comments: None.