Viewing archive of Friday, 9 November 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 Nov 09 2310 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
::::: CORRECTED COPY ::::: SDF Number 314 Issued at 2200Z on 09 Nov 2012IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
09/0151Z which was associated with a non-earth directed CME that
originated from a region behind the east limb. There was a second CME
observed begining at 09/1524Z which was associated with a filament
eruption in the southeast quadrant of the disk. Analysis of the second
CME is still ongoing. There are currently 5 numbered sunspot regions on
the disk.
IB. Solar Activity Forecast
Solar activity is expected to be at low
levels with a slight chance for an M-class flare on days one, two, and
three (10 Nov, 11 Nov, 12 Nov).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 407 km/s at
08/2216Z. There was a weak enhancement of greater than 10 MeV protons at
geosynchronous orbit in response to the full halo, backsided CME that
occurred yesterday. The peak flux level was 2 pfu at 09/0420Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels for the next three days (10 Nov, 11 Nov, 12 Nov).
III. Event Probabilities 10 Nov to 12 Nov
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Nov 115 Predicted 10 Nov-12 Nov 120/125/130 90 Day Mean 09 Nov 117
V. Geomagnetic A Indices
Observed Afr/Ap 08 Nov 002/002 Estimated Afr/Ap 09 Nov 002/003 Predicted Afr/Ap 10 Nov-12 Nov 007/007-007/007-006/005
VI. Geomagnetic Activity Probabilities 10 Nov to 12 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 05% |
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