:Product: 0920SGAS.txt
:Issued: 2026 Sep 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 263 Issued at 0245Z on 20 Sep 2026
This report is compiled from data received at SWO on 19 Sep
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0026 0026 0026                       150                           
 0109 0127 0148              B9.5     190                           
 0308 0315 0317              B6.1     240                           
B.  Proton Events:  None
C.  Geomagnetic Activity Summary:  Field activity was at quiet to
unsettled levels.
D.  Stratwarm:  Not Available
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 097  SSN 011  Afr/Ap 006/007   X-ray Background B2.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.4e+05   GT 10 MeV 2.0e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 3.10e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W72 degrees)
3 Hour K-indices:
Boulder 2 3 2 1 2 2 2 1 Planetary 2 3 2 1 2 2 2 2 
F.  Comments:  None