Viewing archive of Monday, 18 December 2000

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 2000 Dec 18 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 353 Issued at 0245Z on 18 Dec 2000 This report is compiled from data received at SWO on 17 Dec
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
1141 1142 1142                       120
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was mostly quiet to unsettled with an isolated period of active conditions observed during the 17/1500 - 1800Z period.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM SUNDAY STRONG STRATOSPHERIC WARMING IS IN PROGRESS. STRONG ELONGATED POLAR VORTEX WITH A MAJOR CENTER OVER NORTHERN CANADA AND A MINOR CENTER OVER RUSSIA IS WEAKENING. AN ANTICYCLONE EXISTS OVER BOTH THE NORTHERN PACIFIC AND THE NORTH ATLANTIC WITH THE WARMEST AIR OVER THE LABRADOR SEA. THE WARM REGION OVER CENTRAL ASIA IS WEAKENING.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 197  SSN 229  Afr/Ap 006/008   X-ray Background C1.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 3.6e+05   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 8.90e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 2 3 2 2 3 4 3 1 Planetary 1 2 1 2 3 3 3 1
F. Comments
  None

All times in UTC

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