Viewing archive of Thursday, 8 February 2001
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 2001 Feb 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 039 Issued at 2200Z on 08 Feb 2001IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity was low. Region 9335 (N09E01) produced a
C1/Sf at 08/2030 UTC. This area has decayed somewhat since yesterday
but contains some mixed polarity fields. Other disk regions have
decayed a little or remain small and simple. Newly numbered Regions
9344 (N31E13) and 9345 (S20E19) emerged on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. Region 9335 remains the most likely source of flares.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 09 Feb to 11 Feb
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Feb 157 Predicted 09 Feb-11 Feb 155/150/150 90 Day Mean 08 Feb 171
V. Geomagnetic A Indices
Observed Afr/Ap 07 Feb 005/005 Estimated Afr/Ap 08 Feb 005/005 Predicted Afr/Ap 09 Feb-11 Feb 005/010-005/008-005/005
VI. Geomagnetic Activity Probabilities 09 Feb to 11 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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