:Product: 0228SGAS.txt :Issued: 2026 Feb 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 059 Issued at 0245Z on 28 Feb 2026 This report is compiled from data received at SWO on 27 Feb A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0246 0246 0246 120 0426 0426 0426 120 0453 0453 0453 180 1002 1002 1002 130 1243 1243 1243 110 1955 1956 1956 1500 1959 2009 2014 4378 N14E59 C3.4 Sf 1600 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached unsettled levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 139 SSN 053 Afr/Ap 009/010 X-ray Background B6.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 3.30e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 1 3 3 3 3 1 2 Planetary 3 2 2 2 3 3 2 2 F. Comments: None.