:Product: 1018SGAS.txt :Issued: 2021 Oct 18 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 291 Issued at 0245Z on 18 Oct 2021 This report is compiled from data received at SWO on 17 Oct A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None B. Proton Events: None. C. Geomagnetic Activity Summary: The geomagnetic field was quiet to active. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 077 SSN 000 Afr/Ap ???/012 X-ray Background A4.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.1e+04 GT 10 MeV 4.2e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.60e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder ? ? ? ? ? ? ? ? Planetary 0 1 1 3 2 2 4 3 F. Comments: None.