:Product: 0728SGAS.txt :Issued: 2026 Jul 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 209 Issued at 0245Z on 28 Jul 2026 This report is compiled from data received at SWO on 27 Jul A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0232 0243 0248 4494 S04W04 M1.0 Sf 390 II 2233 2244 2248 4494 C3.3 140 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to unsettled levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 147 SSN 089 Afr/Ap 007/007 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.8e+05 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 6.30e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 1 1 2 1 2 2 2 2 Planetary 2 1 2 1 2 2 2 3 F. Comments: None