Viewing archive of Friday, 23 December 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 Dec 23 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 357 Issued at 2200Z on 23 Dec 2005IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. Region 838 (N17E20)
increased in area to approximately 170 millionths.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 24 Dec to 26 Dec
| Class M | 05% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Dec 093 Predicted 24 Dec-26 Dec 090/090/085 90 Day Mean 23 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 22 Dec 004/004 Estimated Afr/Ap 23 Dec 002/007 Predicted Afr/Ap 24 Dec-26 Dec 005/007-005/010-005/007
VI. Geomagnetic Activity Probabilities 24 Dec to 26 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 05% | 01% |
All times in UTC
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