:Product: 0806SGAS.txt :Issued: 2023 Aug 06 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 218 Issued at 0245Z on 06 Aug 2023 This report is compiled from data received at SWO on 05 Aug A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0056 0056 0057 100 0210 0223 0228 3387 N21W39 C3.7 Sf 130 0239 0254 0310 3380 C9.7 250 0322 0322 0322 270 0616 0718 0906 3386 N10W63 M1.6 1n II 0632 0654 0703 3392 410 0923 0936 0950 3380 M2.1 1724 1726 1726 120 2000 2000 2000 120 2145 2221 2244 3392 N09W14 X1.6 Sn 460 II B. Proton Events: The GOES-16 greater than 10 MeV proton flux reached a peak of 18.5 pfu at 05/1745Z due to CME activity associated with a long-duration M1.6/1n flare at 05/0718Z from Region 3386. C. Geomagnetic Activity Summary: The geomagnetic field reached major storm levels in response to the onset of CME influence associated with activity on the Sun over 01-02 Aug. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 176 SSN 100 Afr/Ap 024/030 X-ray Background C1.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.2e+06 GT 10 MeV 6.8e+05 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.20e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder ? 7 5 5 3 2 2 2 Planetary 5 6 5 4 3 2 1 3 F. Comments: USGS magnetometer data remains affected by technical issues.