:Product: 0809SGAS.txt :Issued: 2025 Aug 09 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 221 Issued at 0245Z on 09 Aug 2025 This report is compiled from data received at SWO on 08 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0329 0353 0401 4168 N03W43 M2.8 Sf 0407 0407 0407 130 0419 0419 0419 140 0545 0545 0545 140 0616 0616 0617 220 0822 0822 0822 150 1208 1208 1208 1200 1349 1349 1349 110 1353 1353 1353 140 1415 1435 1508 4168 N09W39 C8.1 1f 530 1600 1600 1601 110 1622 1629 1632 4168 N04W48 Sf 150 1633 1635 1635 180 1635 1635 1635 130 1638 1657 1707 4170 S16W74 C9.8 Sf 120 1856 1910 1917 4168 N06W53 M1.0 Sf 1926 1926 1926 140 1955 1955 1955 110 2012 2012 2012 110 2139 2139 2139 320 2211 2219 2223 C4.9 120 2317 2317 2317 120 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field reached Minor storm levels. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 148 SSN 177 Afr/Ap 018/022 X-ray Background C1.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.3e+06 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.70e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 1 2 3 4 5 4 4 Planetary ? ? ? ? ? ? ? ? F. Comments: None.