Viewing archive of Saturday, 24 January 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 Jan 24 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 024 Issued at 2200Z on 24 Jan 2009IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity continues very low. The disk is still
without spots.
IB. Solar Activity Forecast
Solar activity is expected to persist
at very low levels.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet through late on 26 January, when a recurrent
high-speed solar wind stream is due. Unsettled conditions should
prevail on 27 January.
III. Event Probabilities 25 Jan to 27 Jan
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Jan 069 Predicted 25 Jan-27 Jan 070/070/070 90 Day Mean 24 Jan 068
V. Geomagnetic A Indices
Observed Afr/Ap 23 Jan 001/001 Estimated Afr/Ap 24 Jan 001/005 Predicted Afr/Ap 25 Jan-27 Jan 005/005-005/005-010/010
VI. Geomagnetic Activity Probabilities 25 Jan to 27 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 25% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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