Viewing archive of Wednesday, 28 October 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 Oct 28 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 301 Issued at 2200Z on 28 Oct 2009IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z Solar activity was low. Region 1029 (N16W59) produced
several B-class events and a single C2.2 class flare at 28/0053Z.
IB. Solar Activity Forecast
Solar activity is expected to be low.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
Geomagnetic field activity was quiet.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be quiet through the period (29 thru 31 October).
III. Event Probabilities 29 Oct to 31 Oct
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Oct 080 Predicted 29 Oct-31 Oct 080/078/075 90 Day Mean 28 Oct 071
V. Geomagnetic A Indices
Observed Afr/Ap 27 Oct 002/003 Estimated Afr/Ap 28 Oct 005/005 Predicted Afr/Ap 29 Oct-31 Oct 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 29 Oct to 31 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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