Viewing archive of Sunday, 2 January 2011
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 2011 Jan 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 002 Issued at 2200Z on 02 Jan 2011IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity remained at very low levels. Region 1140
(N32E40) was the sole source of todays occasional B-class flares.
It remained an H-type group with no significant changes noted.
Region 1141 (N34W39) decayed to a B-type group. Region 1142 (S12E21)
showed a minor increase in area and remained a D-type group with a
beta magnetic configuration. No new regions were numbered.
IB. Solar Activity Forecast
Solar activity is expected to be at
very low to low levels during the period (03 - 05 January) with a
chance for an isolated C-class flare.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet through the period (03 - 05 January).
III. Event Probabilities 03 Jan to 05 Jan
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jan 091 Predicted 03 Jan-05 Jan 090/090/090 90 Day Mean 02 Jan 083
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jan 002/003 Estimated Afr/Ap 02 Jan 002/005 Predicted Afr/Ap 03 Jan-05 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 03 Jan to 05 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
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