:Product: 0420SGAS.txt :Issued: 2023 Apr 20 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 110 Issued at 0245Z on 20 Apr 2023 This report is compiled from data received at SWO on 19 Apr A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0324 0324 0324 100 0349 0349 0349 140 0354 0354 0354 370 0420 0430 0438 3272 C2.3 780 0744 0744 0744 340 1143 1143 1143 130 1226 1226 1226 180 1452 1453 1453 620 1553 1553 1553 190 1712 1712 1712 110 1821 1821 1821 100 2312 2312 2313 130 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field reached active levels D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 147 SSN 113 Afr/Ap 009/012 X-ray Background C1.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.2e+04 GT 10 MeV 2.2e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 1 2 4 4 3 2 2 Planetary 2 1 1 4 4 3 2 2 F. Comments: None