:Product: 0415SGAS.txt :Issued: 2021 Apr 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 105 Issued at 0245Z on 15 Apr 2021 This report is compiled from data received at SWO on 14 Apr 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 mostly quiet with an isolated active period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 074 SSN 017 Afr/Ap 007/006 X-ray Background A3.7 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.2e+04 GT 10 MeV 4.3e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.10e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 2 1 1 2 3 2 3 Planetary 1 1 0 1 1 2 2 3 F. Comments: None