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 UTCPrepared 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 DecA. 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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