Viewing archive of Thursday, 3 September 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 Sep 03 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 246 Issued at 2200Z on 03 Sep 2009

IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z

Solar activity was very low. No flares were observed during the past 24 hours. The visible disk remained spotless. A slow CME off the west limb was first visible on SOHO C2 imagery at 03/0254Z.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic field was quiet during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet, with isolated periods of unsettled levels, on day 1 (04 September). Predominantly quiet levels are expected on days 2 and 3 (05-06 September).
III. Event Probabilities 04 Sep to 06 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       03 Sep 069
  Predicted   04 Sep-06 Sep  069/069/069
  90 Day Mean        03 Sep 068
V. Geomagnetic A Indices
  Observed Afr/Ap 02 Sep  002/003
  Estimated     Afr/Ap 03 Sep  005/010
  Predicted    Afr/Ap 04 Sep-06 Sep  008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 04 Sep to 06 Sep
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active10%10%05%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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