Viewing archive of Thursday, 24 January 2002
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 2002 Jan 24 2200 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 2002IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was low. The largest flare of the past
day was a long-duration C7 at 24/0439 UTC. Images from the SOHO
spacecraft suggest that the source of the event was from just behind
the east limb. Other areas only produced a few small subflares.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. An isolated M-class flare is possible in Regions 9787
(S06W06) or 9788 (N18W30).
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 to unsettled.
III. Event Probabilities 25 Jan to 27 Jan
| Class M | 30% | 30% | 30% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Jan 231 Predicted 25 Jan-27 Jan 225/225/225 90 Day Mean 24 Jan 223
V. Geomagnetic A Indices
Observed Afr/Ap 23 Jan 004/006 Estimated Afr/Ap 24 Jan 004/005 Predicted Afr/Ap 25 Jan-27 Jan 005/005-005/005-008/008
VI. Geomagnetic Activity Probabilities 25 Jan to 27 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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