Viewing archive of Tuesday, 31 December 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 Dec 31 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 365 Issued at 0245Z on 31 Dec 2002 This report is compiled from data received at SWO on 30 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 at quiet to active levels. Active conditions were the result of a favorably positioned coronal hole that is in it's waning stage. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
D. Stratwarm
STRATWARM ALERT/MONDAY/STRATWARM EXISTS. VERY STRONG WARMING CONTINUES IN THE UPPER AND MIDDLE STRATOSPHERRE, EXTENDING FROM NORTHWESTERN ASIA TO NORTHERN EUROPE AND GREENLAND. TEMPERATURE GRADIENT BETWEEN 60N AND THE POLE REVERSED DOWN TO 10 HPA AND NET EASTERLY WINDS AT 60N AT 1 HPA.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 114  SSN 044  Afr/Ap 014/015   X-ray Background B1.5
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 8.0e+05   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.50e+08 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 4 2 4 3 2 2 3 2 Planetary 4 3 3 3 3 4 3 3
F. Comments
  Afr estimated from Boulder A.

All times in UTC

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