Viewing archive of Wednesday, 10 October 2012
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 2012 Oct 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 284 Issued at 2200Z on 10 Oct 2012IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity was moderate. A pair of M1 x-ray events
were produced at 09/2331Z and 10/0504Z by a new region which has not
yet rotated around the southeast limb. Region 1589 (N13E61) remains
the largest and most complex group on the solar disk.
IB. Solar Activity Forecast
Solar activity is expected to be low
with the chance for moderate levels over the next three days (11-13
October).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field began the period at minor storm conditions, due
to the onset of a coronal hole high speed stream coupled with
residual and lingering CME effects. Mostly quiet conditions then
followed and continued for the remainder of the period. The greater
than 2 MeV electron flux at geosynchronous orbit reached high levels
during the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active levels on day
one (11 October) as coronal hole effects continue. Mostly quiet
conditions are forecast for days two and three (12-13 October).
III. Event Probabilities 11 Oct to 13 Oct
| Class M | 40% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Oct 112 Predicted 11 Oct-13 Oct 115/115/115 90 Day Mean 10 Oct 118
V. Geomagnetic A Indices
Observed Afr/Ap 09 Oct 032/050 Estimated Afr/Ap 10 Oct 009/011 Predicted Afr/Ap 11 Oct-13 Oct 007/008-006/005-006/005
VI. Geomagnetic Activity Probabilities 11 Oct to 13 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 05% | 05% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 15% | 15% |
| Major-severe storm | 20% | 05% | 05% |
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