:Product: Solar and Geophysical Activity Summary :Issued: 2026 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 2026 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 1040 1051 1059 4465 N05W04 B9.1 Sf 710 1318 1318 1318 110 1329 1329 1330 110 1546 1546 1546 100 1556 1556 1556 110 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 128 SSN 061 Afr/Ap ???/006 X-ray Background B4.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.5e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 5.20e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W72 degrees) 3 Hour K-indices: Boulder 2 2 2 3 2 3 2 2 Planetary 2 2 1 2 2 2 1 1 F. Comments: None