Viewing archive of Tuesday, 20 December 2011
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 2011 Dec 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 354 Issued at 0245Z on 20 Dec 2011 This report is compiled from data received at SWO on 19 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0815 0815 0815 370 1241 1242 1242 120 1340 1340 1340 180 1405 1413 1415 1376 B8.1 340 1428 1428 1428 100 1740 1740 1740 150 1746 1746 1746 120 1820 1820 1820 420 1948 1948 1948 170
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 128 SSN 133 Afr/Ap 006/006 X-ray Background B3.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 7.0e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.40e+06 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 1 2 1 1 1 2 3 2 Planetary 1 1 1 0 1 2 3 2
F. Comments
None.
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
NuukUtsjoki
Reykjavik
Tromsø
Kiruna
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