:Product: 0912SGAS.txt
:Issued: 2017 Sep 12 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 255 Issued at 0245Z on 12 Sep 2017
This report is compiled from data received at SWO on 11 Sep
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0307 0307 0308                       130                           
 0319 0319 0319                       130                           
 0434 0434 0434                       110                           
 0439 0439 0439                       150                           
 0501 0501 0501                       120                           
 0508 0508 0508                       100                           
 0515 0515 0515                       100                           
 0722 0722 0722                       140                           
 0911 0911 0911                       100                           
 0946 0947 0947                       200                           
 1055 1055 1055                       110                           
 2000 2001 2001                       1300                          
B.  Proton Events:  The greater than 10 MeV proton flux was at
(Moderate-Strong radiation storm) levels, with a peak flux of 1,490
pfu at 11/1145 UTC. The greater than 100 MeV proton flux event that
began at 10/1625 UTC and reached a peaked of 68 pfu at 10/2215 UTC,
was still at 60 pfu at 11/0045 UTC before declining to near 10 pfu
at the end of the period.
C.  Geomagnetic Activity Summary:  The geomagnetic field began the
period at active levels before decreasing to unsettled, then quiet
levels for the remainder of the period.
D.  Stratwarm:  Not Available
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 080  SSN 023  Afr/Ap 008/010   X-ray Background B2.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.5e+08   GT 10 MeV 9.4e+07 p/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.70e+08 e/(cm2-ster-day)
(GOES-13 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 4 3 3 2 2 3 2 2 Planetary 4 3 2 2 2 1 2 2 
F.  Comments:  None