Viewing archive of Friday, 11 May 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 May 11 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 131 Issued at 2200Z on 11 May 2007

IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z

Solar activity was very low.
IB. Solar Activity Forecast
Solar activity is expected to be very low to low. C-class flares are possible in Region 955 (S09W06).
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be mostly quiet.
III. Event Probabilities 12 May to 14 May
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       11 May 072
  Predicted   12 May-14 May  070/070/070
  90 Day Mean        11 May 073
V. Geomagnetic A Indices
  Observed Afr/Ap 10 May  002/003
  Estimated     Afr/Ap 11 May  003/005
  Predicted    Afr/Ap 12 May-14 May  005/005-005/008-005/008
VI. Geomagnetic Activity Probabilities 12 May to 14 May
A. Middle Latitudes
Active15%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active20%20%20%
Minor storm10%10%10%
Major-severe storm05%05%05%

All times in UTC

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