Viewing archive of Wednesday, 29 October 2008

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 2008 Oct 29 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 303 Issued at 2200Z on 29 Oct 2008

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

Solar activity was very low. No flares were observed. The visible disk was spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
Geomagnetic field activity ranged from quiet to active levels. ACE solar wind measurements indicated Earth remained under the influence of a recurrent coronal hole high-speed stream. Velocities gradually increased from approximately 475 to 740 km/sec during the period.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is expected to range from quiet to active levels during days 1 - 2 (30 - 31 October). Mostly quiet levels are expected on day 3 (01 November) as the high-speed stream subsides.
III. Event Probabilities 30 Oct to 01 Nov
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       29 Oct 067
  Predicted   30 Oct-01 Nov  067/068/069
  90 Day Mean        29 Oct 067
V. Geomagnetic A Indices
  Observed Afr/Ap 28 Oct  005/004
  Estimated     Afr/Ap 29 Oct  012/012
  Predicted    Afr/Ap 30 Oct-01 Nov  010/015-008/010-005/005
VI. Geomagnetic Activity Probabilities 30 Oct to 01 Nov
A. Middle Latitudes
Active20%20%10%
Minor storm10%10%01%
Major-severe storm01%01%01%
B. High Latitudes
Active25%25%15%
Minor storm15%15%05%
Major-severe storm01%01%01%

All times in UTC

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