Viewing archive of Friday, 22 February 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 Feb 22 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 053 Issued at 0245Z on 22 Feb 2002 This report is compiled from data received at SWO on 21 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1156 1226 1236 9825 N13W90 M3.9 1807 1823 1844 9825 N13W90 M1.0 2028 2037 2047 9825 N13W90 M1.4 28 2349 0010 0027 9830 S16W27 M4.4 2n
B. Proton Events
The greater than 10 MeV protons at geosynchronous
orbit remain elevated following the small proton event that began
and ended between 20/0730 - 0800Z.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM THURSDAY
THE CIRCULATION IS STILL RELAXING AFTER THE MAJOR WARMING. THERE
EXISTS A REVERSED TEMPERATURE GRADIENT FROM 50 HPA AT 60N AND
ZONAL MEAN EASTERLY WINDS FROM 5 HPA TO 1 HPA.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 201 SSN 148 Afr/Ap 008/006 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.3e+06 GT 10 MeV 4.8e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.40e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 1 2 2 3 2 3 3 Planetary 1 1 2 1 2 2 3 3
F. Comments
None
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