Viewing archive of Sunday, 26 September 2004

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 2004 Sep 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 270 Issued at 2200Z on 26 Sep 2004

IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z

Solar activity was very low. Today's activity consisted of a few, low-level B-class flares. There are only two spotted regions on the disk and both are small, stable, and magnetically simple.
IB. Solar Activity Forecast
Solar activity is expected to be very low for the next three days.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was quiet during the past 24 hours. The greater than 2 MeV electrons reached high levels during the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days.
III. Event Probabilities 27 Sep to 29 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       26 Sep 090
  Predicted   27 Sep-29 Sep  090/090/095
  90 Day Mean        26 Sep 111
V. Geomagnetic A Indices
  Observed Afr/Ap 25 Sep  002/005
  Estimated     Afr/Ap 26 Sep  005/005
  Predicted    Afr/Ap 27 Sep-29 Sep  005/005-005/008-005/008
VI. Geomagnetic Activity Probabilities 27 Sep to 29 Sep
A. Middle Latitudes
Active20%20%20%
Minor storm15%15%15%
Major-severe storm05%05%05%
B. High Latitudes
Active20%20%20%
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

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