Viewing archive of Monday, 20 December 2010

Solar activity 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.
Report of Solar-Geophysical Activity 2010 Dec 20 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 354 Issued at 2200Z on 20 Dec 2010

IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z

Solar activity was very low. The visible disk remained spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low for the next three days (21-23 December).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet for the next three days (21-23 December).
III. Event Probabilities 21 Dec to 23 Dec
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       20 Dec 078
  Predicted   21 Dec-23 Dec  078/078/076
  90 Day Mean        20 Dec 083
V. Geomagnetic A Indices
  Observed Afr/Ap 19 Dec  002/001
  Estimated     Afr/Ap 20 Dec  007/007
  Predicted    Afr/Ap 21 Dec-23 Dec  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 21 Dec to 23 Dec
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active10%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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