Viewing archive of Thursday, 17 January 2002

Geophysical report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2002 Jan 17 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 017 Issued at 0245Z on 17 Jan 2002 This report is compiled from data received at SWO on 16 Jan
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0149 0150 0203  9775 S08W79       Sf 220
0550 0550 0550                       290
1005 1013 1018  9775 S05W75 M1.5  Sf
1320 1320 1320                       130
B. Proton Events
A greater than 10 MeV event began at 15/1435 UTC, reached a maximum of 15 PFU at 15/20000 UTC, and ended at 16/1205 UTC.
C. Geomagnetic Activity Summary
Geomagnetic field activity was at mostly quiet levels.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 216  SSN 131  Afr/Ap 005/004   X-ray Background C1.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 9.0e+06   GT 10 MeV 7.9e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.40e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 1 1 3 0 2 2 2 0 Planetary 1 1 3 1 1 2 1 1
F. Comments
  Afr estimated from Boulder A. The GOES-8 X-ray
spectrometer was offline during 15/0020 - 16/2056 UTC. X-ray
background estimated using GOES-10 data (long. W135).

All times in UTC

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