Viewing archive of Tuesday, 21 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 21 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 141 Issued at 0245Z on 21 May 2002 This report is compiled from data received at SWO on 20 MayA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1014 1029 1034 9961 M4.7 150 60 1049 1053 1056 9961 M5.0 100 1521 1527 1531 9961 S21E65 X2.1 2n 810 420 1613 1613 1613 190
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was mostly
quiet to unsettled. A sudden impulse was observed at 0342 UTC
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 171 SSN 171 Afr/Ap 010/014 X-ray Background C1.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.9e+05 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.90e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 3 2 3 2 4 3 2 Planetary 1 3 2 3 3 4 3 3
F. Comments
None
All times in UTC
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