Viewing archive of Friday, 24 May 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 May 24 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 144 Issued at 0245Z on 24 May 2002 This report is compiled from data received at SWO on 23 MayA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0911 0911 0912 220 1602 1602 1602 510
B. Proton Events
A greater than 10 MeV proton event continues in
progress. The event began at 22/1755 UTC, reached a maximum of 820
PFU at 23/1055 UTC and was at 18.5 PFU at the end of the day.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
quiet to severe storm levels. Two sudden impulses were observed: the
first at 1051 UTC measured 87 nT in Boulder and the second at 1545
UTC measured 26 nT in Boulder.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 180 SSN 229 Afr/Ap 045/054 X-ray Background B5.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.6e+08 GT 10 MeV 6.8e+06 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.20e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 2 5 6 7 4 3 Planetary 3 3 2 5 7 7 5 3
F. Comments
None
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