Viewing archive of Sunday, 29 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 29 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 363 Issued at 0245Z on 29 Dec 2002 This report is compiled from data received at SWO on 28 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 mostly unsettled to active at all latitudes. A high speed stream, associated with a large equatorial coronal hole, began late on 26 Dec and continues to buffet the magnetic field. The peak solar wind in this high speed stream exceeded 750 km/s, but has declined slowly to near 650 km/s by the end of the period. The greater than 2 MeV electron fluxes at geosynchronous orbit reached high levels.
D. Stratwarm
STRATWARM ALERT/SATURDAY/STRATWARM EXISTS. INTENSE WARMING IN THE THE UPPER STRATOSPHERE OVE THE NORTH ATLANTIC AND EUROPE WITH MAXIMUM TEMPERATURES OF PLUS 40 C AT 2 HPA. REVERSED TEMPERATURE GRADIENT BETWEEN THE NORTH POLE AND 60N AT 1 HPA AND EXPECTED TO EXTEND FROM 10 TO 1 HPA WITHIN THE NEXT 5 DAYS.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 117  SSN 070  Afr/Ap 017/019   X-ray Background B2.6
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.9e+06   GT 10 MeV 1.3e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 4.10e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 4 4 4 3 3 2 2 Planetary 4 4 4 4 3 4 3 2
F. Comments
  None

All times in UTC

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