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 UTCPrepared 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 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 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
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