Viewing archive of Wednesday, 20 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 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 051 Issued at 0245Z on 20 Feb 2002 This report is compiled from data received at SWO on 19 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
Activity was at quiet to unsettled
levels.
D. Stratwarm
Stratwarm Alert Exists Stratwarm Tuesday
The circulation remains very disturbed after the recent major warming
are now no longer fulfilled, but only narrowly so. There exists a
reversal in zonal mean wind from 5 HPA upwards and in zonal mean
temperature from 50 HPA upwards.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 189 SSN 130 Afr/Ap 008/004 X-ray Background B7.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.7e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.10e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 2 2 2 3 3 2 Planetary 2 1 1 1 1 2 2 1
F. Comments
Afr estimated, based upon Boulder USGS magnetometer data.
All times in UTC
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