Viewing archive of Thursday, 17 November 2005
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 2005 Nov 17 2204 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 321 Issued at 2200Z on 17 Nov 2005 IA. Analysis of Solar Active Regions and Activity from 16/2100Z to 17/2100Z: Solar activity was very low. Region 822 (S07E15) produced numerous B-class flares during the last 24 hours. The largest of these included a B5.8/Sf event occurring at 17/0143Z and a B6.6 event occurring at 17/0314Z. A slight growth in the number of sunspots was observed during this period. This region remains a beta-gamma spot group.IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate.
IIA. Geophysical Activity Summary 16-2100Z to 17-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet on 18-19 November. Quiet to unsettled
conditions are expected on 20 November.
III. Event Probabilities 18 Nov to 20 Nov
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 17 Nov 101 Predicted 18 Nov-20 Nov 100/100/100 90 Day Mean 17 Nov 085
V. Geomagnetic A Indices
Observed Afr/Ap 16 Nov 001/003 Estimated Afr/Ap 17 Nov 005/005 Predicted Afr/Ap 18 Nov-20 Nov 005/005-005/005-007/007
VI. Geomagnetic Activity Probabilities 18 Nov to 20 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 05% |
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