Viewing archive of Saturday, 24 February 2007

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 2007 Feb 24 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 055 Issued at 2200Z on 24 Feb 2007

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity was very low. No significant activity was observed over the past 24 hours. Region 944 (S07E49) is the only spotted region on the visible disk.
IB. Solar Activity Forecast
Solar activity is expected to continue at very low levels.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be unsettled to active for the next three days (25-27 February). Isolated minor to major storm periods are possible on 25-26 February due to a recurrent coronal hole high speed stream.
III. Event Probabilities 25 Feb to 27 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       24 Feb 076
  Predicted   25 Feb-27 Feb  077/078/079
  90 Day Mean        24 Feb 082
V. Geomagnetic A Indices
  Observed Afr/Ap 23 Feb  002/002
  Estimated     Afr/Ap 24 Feb  003/005
  Predicted    Afr/Ap 25 Feb-27 Feb  015/020-010/015-010/010
VI. Geomagnetic Activity Probabilities 25 Feb to 27 Feb
A. Middle Latitudes
Active30%25%20%
Minor storm20%15%10%
Major-severe storm05%01%01%
B. High Latitudes
Active35%30%25%
Minor storm25%20%15%
Major-severe storm15%10%05%

All times in UTC

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