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 UTCPrepared 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 JulA. 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
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