Viewing archive of Saturday, 25 February 2006
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 2006 Feb 25 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 056 Issued at 2200Z on 25 Feb 2006IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was very low. The visible solar disk
remains spotless; however, SXI imagery shows a brightening on the
east limb at approximately S09. This region was responsible for
isolated low level B-class activity. This is likely the return of
Region 853 (S09, L=120).
IB. Solar Activity Forecast
Solar activity is expected to remain
at very low levels with a chance for an isolated C-flare.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly quiet. Quiet to unsettled conditions are
expected on 28 February.
III. Event Probabilities 26 Feb to 28 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Feb 076 Predicted 26 Feb-28 Feb 080/080/080 90 Day Mean 25 Feb 084
V. Geomagnetic A Indices
Observed Afr/Ap 24 Feb 004/006 Estimated Afr/Ap 25 Feb 002/002 Predicted Afr/Ap 26 Feb-28 Feb 005/005-005/005-005/008
VI. Geomagnetic Activity Probabilities 26 Feb to 28 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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