Viewing archive of Sunday, 21 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 21 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 202 Issued at 0245Z on 21 Jul 2002 This report is compiled from data received at SWO on 20 Jul
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0054 0054 0055                       210
1046 1046 1048                       130
1906 1906 1906                       650
1924 1924 1924                       180
1927 1927 1928                       250
2008 2008 2008                       160
2029 0000 2032                                     II
2104 2130 2154              X3.3     12000  2600   II
2324 2324 2325                       730
B. Proton Events
A >10 MeV event was ended on 19 July at 1535 UTC. The peak flux was 13 pfu at 19/1515UTC.
C. Geomagnetic Activity Summary
Quiet to minor storm
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 185  SSN 136  Afr/Ap 018/018   X-ray Background C1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.6e+06   GT 10 MeV 1.1e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.30e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 5 5 3 2 1 2 2 3 Planetary 4 4 3 2 2 3 3 4
F. Comments
  None

All times in UTC

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