Viewing archive of Wednesday, 26 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 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 026 Issued at 2200Z on 26 Jan 2011IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity was at very low levels. Region 1149
(N17W77) produced occasional low-level B-class flares during the
period. Region 1149 continues to show decay in spot number. Region
1147 (N24W77) remained stable.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. There is a slight chance for a C-class flare.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic field was at quiet levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at mostly quiet for the next three days (27-29
January).
III. Event Probabilities 27 Jan to 29 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Jan 080 Predicted 27 Jan-29 Jan 079/078/076 90 Day Mean 26 Jan 084
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jan 003/004 Estimated Afr/Ap 26 Jan 002/003 Predicted Afr/Ap 27 Jan-29 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 27 Jan to 29 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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