Viewing archive of Monday, 28 February 2005

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 2005 Feb 28 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 059 Issued at 2200Z on 28 Feb 2005

IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z

Solar activity continues at very low levels. Region 739 (S04E21) is a very small and magnetically simple region, and is the only sunspot group on the visible disk. No activity of note was observed today.
IB. Solar Activity Forecast
Solar activity is expected to continue at very low levels.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic field was quiet to unsettled. A coronal hole high speed stream is in effect; however, the IMF Bz was predominantly northward. Solar wind speed ranged from 550 - 600 km/s.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled with isolated active periods.
III. Event Probabilities 01 Mar to 03 Mar
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       28 Feb 075
  Predicted   01 Mar-03 Mar  075/075/080
  90 Day Mean        28 Feb 098
V. Geomagnetic A Indices
  Observed Afr/Ap 27 Feb  006/008
  Estimated     Afr/Ap 28 Feb  010/015
  Predicted    Afr/Ap 01 Mar-03 Mar  008/012-005/008-005/008
VI. Geomagnetic Activity Probabilities 01 Mar to 03 Mar
A. Middle Latitudes
Active25%20%15%
Minor storm15%10%05%
Major-severe storm05%01%01%
B. High Latitudes
Active30%25%25%
Minor storm20%15%10%
Major-severe storm10%05%05%

All times in UTC

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