Viewing archive of Friday, 20 December 2002

Geophysical report

Solar and Geophysical Activity Summary 2002 Dec 20 0245 UTC
Prepared by the NOAA © SWPC and processed by

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
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

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