:Product: 0916SGAS.txt :Issued: 2023 Sep 16 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 259 Issued at 0245Z on 16 Sep 2023 This report is compiled from data received at SWO on 15 Sep A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0255 0309 0317 3429 C7.4 230 0852 0859 0905 3429 N14E03 C1.9 Sf 690 1009 1017 1025 3429 N11W00 C2.2 Sf 300 1108 1108 1108 310 2219 2229 2234 3429 N12W08 M1.7 1f B. Proton Events: None C. Geomagnetic Activity Summary: Quiet to active levels were observed during the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 139 SSN 096 Afr/Ap 007/011 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.8e+06 GT 10 MeV 1.9e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.90e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 2 2 1 1 3 3 2 2 Planetary 2 2 1 1 3 4 3 3 F. Comments: None