Viewing archive of Saturday, 22 December 2001

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 2001 Dec 22 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 356 Issued at 0245Z on 22 Dec 2001 This report is compiled from data received at SWO on 21 Dec
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active. An increase in the solar wind speed began at around 21/1100Z. This increase was accompanied by sustained periods of southward Bz resulting in unsettled to active periods at all latitudes.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM FRIDAY STRATOSPHERIC WARMING IN THE MIDDLE AND UPPER STRATOSPHERE, FURTHER INTENSIFYING WITH A REVERSED TEMPERATURE GRADIENT BETWEEN 60N AND THE POLE IN THE UPPERMOST LEVELS EXPECTED WITHIN THE NEXT 3 DAYS.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 234  SSN 215  Afr/Ap 011/011   X-ray Background C1.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.8e+05   GT 10 MeV 1.4e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 2.20e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 0 2 2 2 2 4 4 2 Planetary 1 2 2 2 3 4 4 3
F. Comments
  None

All times in UTC

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