:Product: 0421SGAS.txt
:Issued: 2025 Apr 21 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 111 Issued at 0245Z on 21 Apr 2025
This report is compiled from data received at SWO on 20 Apr
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1137 1211 1259              M1.0                                   
 1608 1608 1608                       120                           
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 156  SSN 108  Afr/Ap 011/???   X-ray Background C1.0
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.1e+05   GT 10 MeV 1.5e+04 p/(cm2-ster-day)
(GOES-18 satellite synchronous orbit W137 degrees)
Daily Electron Fluence
GT 2 MeV 2.30e+07 e/(cm2-ster-day)
(GOES-19 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 4 2 3 2 2 2 2 1 Planetary ? ? ? ? ? ? ? ? 
F.  Comments:  None.