Viewing archive of Thursday, 30 December 2010
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 2010 Dec 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 364 Issued at 2200Z on 30 Dec 2010IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity was very low during the past 24 hours. A
partial-halo CME was observed on SOHO LASCO C2 imagery, first
visible at 30/1000Z, that was associated with a filament eruption
centered at N36W50. The CME does not appear to be Earth-directed.
IB. Solar Activity Forecast
Solar activity is expected to be very
low with a slight chance for C-class activity for the next three
days (31 December - 2 January).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to quiet for the next three days (31 December - 2 January).
III. Event Probabilities 31 Dec to 02 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Dec 083 Predicted 31 Dec-02 Jan 084/084/082 90 Day Mean 30 Dec 083
V. Geomagnetic A Indices
Observed Afr/Ap 29 Dec 003/003 Estimated Afr/Ap 30 Dec 004/005 Predicted Afr/Ap 31 Dec-02 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 31 Dec to 02 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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