:Product: 0817SGAS.txt :Issued: 2026 Aug 17 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 229 Issued at 0245Z on 17 Aug 2026 This report is compiled from data received at SWO on 16 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0956 0959 1002 4507 N05W25 C1.5 Sf 1400 B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 129 SSN 083 Afr/Ap ???/004 X-ray Background B8.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.5e+04 GT 10 MeV 2.0e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.60e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 1 1 3 ? ? ? ? ? Planetary 1 2 2 2 0 0 1 1 F. Comments: USGS magnetometer data outage.