Viewing archive of Saturday, 20 February 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 Feb 20 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 051 Issued at 2200Z on 20 Feb 2010

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

Solar activity was very low. Isolated B-class flares were observed during the period.
IB. Solar Activity Forecast
Solar activity is expected to be at very low levels. There is a slight chance for an isolated C-class flare.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
Geomagnetic field activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is expected to be at quiet levels throughout the forecast period (21-23 February).
III. Event Probabilities 21 Feb to 23 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       20 Feb 084
  Predicted   21 Feb-23 Feb  084/084/082
  90 Day Mean        20 Feb 080
V. Geomagnetic A Indices
  Observed Afr/Ap 19 Feb  003/003
  Estimated     Afr/Ap 20 Feb  002/005
  Predicted    Afr/Ap 21 Feb-23 Feb  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 21 Feb to 23 Feb
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active05%05%05%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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