Viewing archive of Saturday, 27 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 27 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 208 Issued at 0245Z on 27 Jul 2002 This report is compiled from data received at SWO on 26 Jul
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
0004 0010 0016  0044 S20E28 M4.9  1n        250
0628 0642 0648  0044 S20E27 M1.1  Sn
0657 0701 0725  0039 S14E31       Sf 160
0804 0829 0902  0044 S19E27 M1.3  Sn
1020 1021 1023                       290
1158 1158 1158                       170
1857 1903 1906  0044 S21E21 M1.0  Sf 630    44
2051 2112 2129  0044        M8.7     250    180
2203 2217 2232              M5.3     5900   1000
2236 2238 2241  0044        M4.6            44
B. Proton Events
A greater than 10 MeV proton event began at 22/0655 UTC and remains in progress. Maximum flux thus far was 28 pfu at 23/1025 UTC.
C. Geomagnetic Activity Summary
The geomagnetic field has been quiet to active.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 242  SSN 319  Afr/Ap 015/017   X-ray Background C1.8
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.2e+07   GT 10 MeV 8.7e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 5.80e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 3 4 3 3 3 3 Planetary 4 3 3 4 3 3 4 3
F. Comments
  None

All times in UTC

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