Viewing archive of Tuesday, 27 October 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 Oct 27 2201 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 300 Issued at 2200Z on 27 Oct 2009

IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z

Solar activity was low. Region 1029 (N15W45) produced several C-class events, the largest being a C 1.7 at 0924Z.
IB. Solar Activity Forecast
Solar activity is expected to be low. C-class events are expected from Region 1029.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
Geomagnetic field activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is expected to be quiet.
III. Event Probabilities 28 Oct to 30 Oct
Class M05%05%05%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       27 Oct 082
  Predicted   28 Oct-30 Oct  082/082/078
  90 Day Mean        27 Oct 069
V. Geomagnetic A Indices
  Observed Afr/Ap 26 Oct  003/003
  Estimated     Afr/Ap 27 Oct  005/005
  Predicted    Afr/Ap 28 Oct-30 Oct  005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Oct to 30 Oct
A. Middle Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active05%05%05%
Minor storm01%01%01%
Major-severe storm01%01%01%

All times in UTC

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