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20021220SGAS.txt
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:Product: 20021220SGAS.txt
:Issued: 2002 Dec 20 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 354 Issued at 0245Z on 20 Dec 2002
This report is compiled from data received at SWO on 19 Dec
A. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep
0217 0217 0217 120
0419 0419 0419 1100
1105 1105 1105 100
1856 1856 1857 230
1901 1901 1901 810
2134 2153 2217 0229 N15W09 M2.7 2n 640 210 II/IV
B. Proton Events: The greater than 10 MeV proton flux was on the
rise at the time of this writing (1.4 pfu at geosynchronous orvit)
in response to the M2.7/2n flare that occurred at 19/2153 UTC.
C. Geomagnetic Activity Summary: The geomagnetic field was at
unsettled to minor storm levels. A favorably positioned recurrent
coronal hole and the resulting high speed stream are responsible for
the elevated conditions.
D. Stratwarm: None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 193 SSN 225 Afr/Ap 020/021 X-ray Background B9.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.5e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.90e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 3 3 3 4 3 4 3 3 Planetary 3 3 4 5 4 4 4 2
F. Comments: None