:Product: 0321SGAS.txt :Issued: 2026 Mar 21 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 080 Issued at 0245Z on 21 Mar 2026 This report is compiled from data received at SWO on 20 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0656 0656 0656 150 0942 0942 0942 290 1947 1948 1949 280 1957 1958 1958 2200 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to severe storm levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 102 SSN 028 Afr/Ap 025/034 X-ray Background B2.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.4e+06 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 5.10e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 3 3 3 4 5 6 Planetary 2 3 4 4 3 3 6 7 F. Comments: None.