:Product: 0615SGAS.txt :Issued: 2025 Jun 15 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 166 Issued at 0245Z on 15 Jun 2025 This report is compiled from data received at SWO on 14 Jun A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0010 0010 0010 200 0017 0017 0017 240 0019 0019 0021 180 0347 0347 0347 110 1140 1140 1140 160 1146 1146 1146 130 1321 1328 1330 4115 N23E43 C2.7 Sf 630 1536 1537 1542 4114 N19E32 Sf 280 1752 1804 1813 4105 M1.0 2251 2301 2309 4105 S16W74 M6.8 1n B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to active levels due to CH HSS influence. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 151 SSN 136 Afr/Ap 021/024 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+05 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.40e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W0 degrees) 3 Hour K-indices: Boulder 4 4 3 4 2 3 3 3 Planetary ? ? ? ? ? ? ? ? F. Comments: None.