:Product: 0319SGAS.txt :Issued: 2026 Mar 19 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 078 Issued at 0245Z on 19 Mar 2026 This report is compiled from data received at SWO on 18 Mar A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0152 0152 0154 190 0235 0235 0235 170 0711 0711 0711 100 0826 0842 0857 4392 S14W05 M2.7 1n 600 230 II 0900 0903 0905 450 0913 0913 0914 120 IV 1122 1122 1122 200 IV 1429 1429 1430 140 1432 1432 1433 150 1635 1635 1635 200 1645 1654 1658 4392 C1.0 210 1823 1827 1827 120 B. Proton Events: None. C. Geomagnetic Activity Summary: Field conditions were quiet. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 113 SSN 083 Afr/Ap 004/005 X-ray Background B3.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 8.6e+05 GT 10 MeV 1.6e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.60e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 1 1 1 1 2 2 1 1 Planetary 1 1 2 2 1 1 1 2 F. Comments: None.