Viewing archive of Sunday, 10 May 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 May 10 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 130 Issued at 2200Z on 10 May 2009

IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z

Solar activity was very low. B1 flares were observed at 10/0304Z and 10/1216Z. No spots were observed on the visible disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low, with a slight chance for an isolated C-class flare.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
Geomagnetic activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic activity is expected to be quiet for the forecast period (11-13 May).
III. Event Probabilities 11 May to 13 May
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       10 May 072
  Predicted   11 May-13 May  072/072/073
  90 Day Mean        10 May 070
V. Geomagnetic A Indices
  Observed Afr/Ap 09 May  006/006
  Estimated     Afr/Ap 10 May  005/005
  Predicted    Afr/Ap 11 May-13 May  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 11 May to 13 May
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active10%10%10%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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