Viewing archive of Sunday, 15 April 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 Apr 15 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 105 Issued at 2200Z on 15 Apr 2007

IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z

Solar activity was very low. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
The geomagnetic field was mostly quiet. One period of unsettled conditions was observed at high latitudes at 14/2400 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be predominately quiet.
III. Event Probabilities 16 Apr to 18 Apr
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       15 Apr 069
  Predicted   16 Apr-18 Apr  070/070/070
  90 Day Mean        15 Apr 075
V. Geomagnetic A Indices
  Observed Afr/Ap 14 Apr  003/004
  Estimated     Afr/Ap 15 Apr  005/005
  Predicted    Afr/Ap 16 Apr-18 Apr  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 16 Apr to 18 Apr
A. Middle Latitudes
Active10%10%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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