Viewing archive of Thursday, 25 July 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 Jul 25 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 206 Issued at 0245Z on 25 Jul 2002 This report is compiled from data received at SWO on 24 Jul
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0018 0035 0047  0039 S13E72 X4.8  2b 6600   1800   II/IV
0433 0434 0435                       110
1524 1555 1622  0039 S13E49 M1.2  1f                  IV
B. Proton Events
A greater than 10 MeV proton event began at 22/0655 UTC and remains in progress. Maximum flux observed thus far was 28 pfu at 23/1025 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to unsettled.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 208  SSN 270  Afr/Ap 015/012   X-ray Background C1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.3e+07   GT 10 MeV 1.7e+06 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.20e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 3 2 2 2 3 2 Planetary 3 3 3 2 3 3 3 2
F. Comments
  None

All times in UTC

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