Viewing archive of Sunday, 9 December 2007

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 2007 Dec 09 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 343 Issued at 2200Z on 09 Dec 2007

IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z

Solar activity was very low. Region 978 (S09E26) produced a B9.4 flare during this perioed.
IB. Solar Activity Forecast
Solar activity is expected to range from very low to low. C-class activity is likely from region 978.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field activity level will increase from quiet to unsettled early on day 2 as a recurrent coronal hole becomes geoeffective. There is a slight chance of isolated active periods at high latitudes.
III. Event Probabilities 10 Dec to 12 Dec
Class M15%15%15%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       09 Dec 089
  Predicted   10 Dec-12 Dec  085/085/085
  90 Day Mean        09 Dec 069
V. Geomagnetic A Indices
  Observed Afr/Ap 08 Dec  001/000
  Estimated     Afr/Ap 09 Dec  005/005
  Predicted    Afr/Ap 10 Dec-12 Dec  005/005-008/008-008/008
VI. Geomagnetic Activity Probabilities 10 Dec to 12 Dec
A. Middle Latitudes
Active15%20%20%
Minor storm05%15%15%
Major-severe storm01%05%05%
B. High Latitudes
Active20%25%25%
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

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