Viewing archive of Friday, 15 December 2006
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 2006 Dec 15 0248 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 349 Issued at 0245Z on 15 Dec 2006 This report is compiled from data received at SWO on 14 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0214 0240 0257 0930 S06W24 X3.4 4b 44000 II/IV 0610 0615 0622 B2.8 190 0933 0937 0939 B2.4 760 1107 1110 1113 B1.8 200 2107 2215 2226 0930 S05W31 X1.5 Sf 99 620 II 2209 2210 2227 1200 II 2222 0000 0000 IV
B. Proton Events
A greater than 100 MeV proton event commenced at
13/0300 UTC, reached maximum at 13/0525 UTC with 88.7 pfu and ended
at 14/1150 UTC. The greater than 10 MeV event that started 13/0310
UTC is still in progress with current levels increasing due to
enhancement from an X1.5 flare from Region 930 (S05W47). Another
greater than 100 MeV proton event commenced at 14/2255 UTC .
C. Geomagnetic Activity Summary
The geomagnetic field reached
major to severe storm levels. The ACE satellite observed the shock
from the 13 December CME at 14/1356 UTC. A sudden impulse was
observed at the Boulder magnetometer at 14/1416 UTC with a deviation
of 26 nT. Periods of major to severe storming occurred between
14/1200 UTC and 14/1800 UTC. Solar wind speed is currently 900
km/s.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 093 SSN 023 Afr/Ap 040/063 X-ray Background B1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.5e+08 GT 10 MeV 1.0e+07 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W136 degrees) Daily Electron Fluence GT 2 MeV 4.70e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 3 3 5 6 4 7 Planetary 2 1 2 2 6 7 6 8
F. Comments
None
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