:Product: 0915SGAS.txt
:Issued: 2005 Sep 15 0248 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 258 Issued at 0245Z on 15 Sep 2005
This report is compiled from data received at SWO on 14 Sep
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0000 0000 0000                                        IV           
 0448 0000 1641                                        IV           
 1005 1038 1054              M4.6     170    188       IV           
 1635 0000 0421                                        IV           
 2315 2322 2330  0808        X1.7            180                    
B.  Proton Events:  The greater than 10 MeV proton flux crossed the
10 pfu event threshold at 14/0040 UTC in response to an influx of
energetic particles from the recent X1 flares late on 13 September.
This new proton enhancement reached a maximum of 183 pfu at 14/1520
UTC before declining to around 35 pfu by 14/2140 UTC; it has since
increased to near 100 pfu by the end of the period.
C.  Geomagnetic Activity Summary:  The geomagnetic field was at quiet
to minor storm levels. Minor storm conditions were the result of
elevated solar wind speeds and long periods of southward Bz in the
IMF.
D.  Stratwarm:  Not Available
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 117  SSN 086  Afr/Ap 018/025   X-ray Background B5.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 8.4e+07   GT 10 MeV 8.5e+06 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W113 degrees)
Daily Electron Fluence
GT 2 MeV 9.80e+08 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W74 degrees)
3 Hour K-indices:
Boulder 3 3 5 4 4 3 3 3 Planetary 3 3 5 5 5 3 3 2 
F.  Comments:  The greater than 2 MeV electron fluence at
geosynchronous orbit reached high levels today.