Viewing archive of Tuesday, 30 April 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 Apr 30 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 120 Issued at 0245Z on 30 Apr 2002 This report is compiled from data received at SWO on 29 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0026 0026 0026 260 0146 0146 0146 190 0922 0928 0931 C3.4 150 0935 0940 0944 C4.8 220 1010 1010 1011 170 1201 0000 1214 II
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled with isolated active periods at high latitudes. The
disturbed conditions are due to a high speed coronal hole stream
that began on the 27th.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 153 SSN 124 Afr/Ap 007/009 X-ray Background B7.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.5e+05 GT 10 MeV 6.3e+04 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 1 1 1 2 3 3 2 1 Planetary 2 1 2 3 3 3 3 2
F. Comments
None
All times in UTC
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