Viewing archive of Saturday, 12 December 2009
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 2009 Dec 12 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 346 Issued at 2200Z on 12 Dec 2009IA. Analysis of Solar Active Regions and Activity from 11-2100Z to 12-2100Z Solar activity was very low. No flares were observed
during the forecast period. Region 1034 (N20E32) remains a small Bxo
Beta group.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. There is a chance for an isolated C-class event from
Region 1034 during the next three days (13-15 December).
IIA. Geophysical Activity Summary 11-2100Z to 12-2100Z
The geomagnetic field has been quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet for the next three days (13-15 December).
III. Event Probabilities 13 Dec to 15 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 12 Dec 075 Predicted 13 Dec-15 Dec 075/075/075 90 Day Mean 12 Dec 073
V. Geomagnetic A Indices
Observed Afr/Ap 11 Dec 000/000 Estimated Afr/Ap 12 Dec 005/005 Predicted Afr/Ap 13 Dec-15 Dec 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 13 Dec to 15 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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