Viewing archive of Tuesday, 7 April 2009

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 2009 Apr 07 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 097 Issued at 2200Z on 07 Apr 2009

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity was very low. No flares were observed during the past 24 hours. The solar disk remains spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days (08-10 April) due to a recurrent coronal high speed stream. Isolated active conditions at mid latitudes and minor storming at high latitudes are possible on 09 April.
III. Event Probabilities 08 Apr to 10 Apr
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       07 Apr 070
  Predicted   08 Apr-10 Apr  070/070/070
  90 Day Mean        07 Apr 070
V. Geomagnetic A Indices
  Observed Afr/Ap 06 Apr  002/003
  Estimated     Afr/Ap 07 Apr  002/005
  Predicted    Afr/Ap 08 Apr-10 Apr  007/008-010/015-007/008
VI. Geomagnetic Activity Probabilities 08 Apr to 10 Apr
A. Middle Latitudes
Active30%35%30%
Minor storm05%10%05%
Major-severe storm01%01%01%
B. High Latitudes
Active35%35%35%
Minor storm10%15%10%
Major-severe storm05%05%05%

All times in UTC

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