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20020914SGAS.txt
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:Product: 20020914SGAS.txt
:Issued: 2002 Sep 14 0245 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 257 Issued at 0245Z on 14 Sep 2002
This report is compiled from data received at SWO on 13 Sep
A. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep
0211 0213 0222 0105 S07E03 Sf 270
1627 1627 1627 110
2058 2058 2058 100
2101 2105 2106 430
2121 2121 2121 140
B. Proton Events: None
C. Geomagnetic Activity Summary: The geomagnetic field ranged from
quiet to minor storm levels. An isolated period of minor storm
conditions existed at mid-latitudes from 13/0600 to 0900 UTC.
Coronal hole high speed stream effects continued to be the main
source of the elevated activity. The greater than 2 MeV electron
flux at geosynchronous orbit exceeded event threshold at 13/1620
UTC, reached a maximum value of 1070 pfu at 13/1805 UTC, and fell
below threshold value at 13/1810 UTC.
D. Stratwarm: None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 206 SSN 246 Afr/Ap 012/016 X-ray Background B7.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 2.4e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.70e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 3 3 5 4 3 2 3 2 Planetary 3 3 4 4 3 2 3 2
F. Comments: None