Viewing archive of Saturday, 10 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 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 041 Issued at 2200Z on 10 Feb 2001IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity was low. Region 9338 (S20W15) was the
prime flare site. It produced two C3/Sf flares, at 09/2150 and
09/2321 UTC. These were the largest events of the period. Two new
regions were assigned, 9348 (N10E05) and 9349 (N27E58).
IB. Solar Activity Forecast
Solar activity is expected to persist
at the low level.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet throughout the period.
III. Event Probabilities 11 Feb to 13 Feb
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Feb 161 Predicted 11 Feb-13 Feb 165/165/165 90 Day Mean 10 Feb 171
V. Geomagnetic A Indices
Observed Afr/Ap 09 Feb 003/004 Estimated Afr/Ap 10 Feb 006/005 Predicted Afr/Ap 11 Feb-13 Feb 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 11 Feb to 13 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 | 05% | 05% | 05% |
All times in UTC
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