Viewing archive of Thursday, 8 February 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 Feb 08 2202 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 039 Issued at 2200Z on 08 Feb 2007 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was at very low levels. No significant activity occurred today. Region 941 (S07W61) underwent little change during the period and is currently the only spotted region on the visible disk.
IB. Solar Activity Forecast
Solar activity is expected to remain at very low levels.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field was at quiet to unsettled levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels on 09 and 10 February. A recurrent high speed coronal hole stream is expected to become geoeffective late on 11 February. Active to minor storm conditions are expected with the onset of the coronal hole.
III. Event Probabilities 09 Feb to 11 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       08 Feb 078
  Predicted   09 Feb-11 Feb  080/083/083
  90 Day Mean        08 Feb 084
V. Geomagnetic A Indices
  Observed Afr/Ap 07 Feb  008/010
  Estimated     Afr/Ap 08 Feb  005/005
  Predicted    Afr/Ap 09 Feb-11 Feb  005/005-005/005-012/020
VI. Geomagnetic Activity Probabilities 09 Feb to 11 Feb
A. Middle Latitudes
Active15%15%25%
Minor storm01%01%10%
Major-severe storm01%01%05%
B. High Latitudes
Active15%15%40%
Minor storm05%05%20%
Major-severe storm01%01%15%

All times in UTC

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