:Product: 0819SGAS.txt
:Issued: 2026 Aug 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 231 Issued at 0245Z on 19 Aug 2026
This report is compiled from data received at SWO on 18 Aug
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1443 1443 1443                       130                           
 1614 1614 1614                       170                           
 2132 2132 2132                       120                           
B.  Proton Events:  None
C.  Geomagnetic Activity Summary:  The geomagnetic field reached
minor storm levels
D.  Stratwarm:  Not Available
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 125  SSN 071  Afr/Ap 020/025   X-ray Background B8.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.6e+06   GT 10 MeV 2.0e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 1.30e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W72 degrees)
3 Hour K-indices:
Boulder 5 6 3 2 3 3 4 3 Planetary 4 5 3 2 2 2 5 4 
F.  Comments:  None