Viewing archive of Tuesday, 19 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 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 050 Issued at 0245Z on 19 Feb 2002 This report is compiled from data received at SWO on 18 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0321 0321 0321 140 0529 0529 0529 200 0531 0537 0537 100 1409 1409 1409 460 2018 2115 2158 9830 S20E16 M1.0 Sf
B. Proton Events
None
C. Geomagnetic Activity Summary
Activity ranged from quiet to
active levels. An active period occurred during 18/2100-2400 UTC.
D. Stratwarm
Stratwarm alert exists Stratwarm Monday
The criteria for a major warming are fulfilled. There are mean zonal
easterly winds at 60N from the 10 HPA level upwards and a reversed
temperature gradient between 60N and the pole from 50 HPA up to 1
HPA.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 193 SSN 103 Afr/Ap 011/009 X-ray Background B7.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.8e+05 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 9.50e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 2 2 2 2 3 3 4 Planetary 1 2 2 2 1 3 3 4
F. Comments
Afr estimated based on Boulder USGS magnetometer data.
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