Viewing archive of Tuesday, 23 January 2007
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 2007 Jan 23 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 023 Issued at 2200Z on 23 Jan 2007IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. Region 939 (S03W55) has
changed little since yesterday and continues to produce small
B-class flares.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. C-class flares are possible in Region 939.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit was high.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly quiet.
III. Event Probabilities 24 Jan to 26 Jan
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Jan 079 Predicted 24 Jan-26 Jan 080/075/075 90 Day Mean 23 Jan 084
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jan 002/003 Estimated Afr/Ap 23 Jan 003/005 Predicted Afr/Ap 24 Jan-26 Jan 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 24 Jan to 26 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
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