Viewing archive of Tuesday, 6 January 2015
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 2015 Jan 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 6 Issued at 2200Z on 06 Jan 2015IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C9 event observed at
06/1148Z. There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (07 Jan, 08 Jan, 09 Jan).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
580 km/s at 05/2246Z. Total IMF reached 13 nT at 06/0357Z. The maximum
southward component of Bz reached -10 nT at 06/0802Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 874 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (07 Jan, 09
Jan) and unsettled to active levels on day two (08 Jan). Protons have a
slight chance of crossing threshold on days one, two, and three (07 Jan,
08 Jan, 09 Jan).
III. Event Probabilities 07 Jan to 09 Jan
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Jan 142 Predicted 07 Jan-09 Jan 145/155/160 90 Day Mean 06 Jan 157
V. Geomagnetic A Indices
Observed Afr/Ap 05 Jan 010/011 Estimated Afr/Ap 06 Jan 011/012 Predicted Afr/Ap 07 Jan-09 Jan 007/008-015/018-007/010
VI. Geomagnetic Activity Probabilities 07 Jan to 09 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 35% | 20% |
| Minor storm | 05% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 20% | 50% | 30% |
All times in UTC
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