Viewing archive of Thursday, 6 February 2014
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 2014 Feb 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 37 Issued at 2200Z on 06 Feb 2014IA. 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 C7 event observed at
06/0431Z from Region 1968 (N08W48). There are currently 7 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(07 Feb, 08 Feb, 09 Feb).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
465 km/s at 06/0512Z. Total IMF reached 9 nT at 06/0218Z. The maximum
southward component of Bz reached -6 nT at 06/0831Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (07 Feb), quiet to minor
storm levels on day two (08 Feb) and quiet to active levels on day three
(09 Feb). Protons have a slight chance of crossing threshold on days
one, two, and three (07 Feb, 08 Feb, 09 Feb).
III. Event Probabilities 07 Feb to 09 Feb
| Class M | 60% | 60% | 60% |
| Class X | 20% | 20% | 20% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Feb 191 Predicted 07 Feb-09 Feb 008/015/010 90 Day Mean 06 Feb 155
V. Geomagnetic A Indices
Observed Afr/Ap 05 Feb 005/003 Estimated Afr/Ap 06 Feb 007/008 Predicted Afr/Ap 07 Feb-09 Feb 007/008-012/015-009/010
VI. Geomagnetic Activity Probabilities 07 Feb to 09 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 35% | 35% |
| Minor storm | 05% | 20% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 25% | 50% | 45% |
All times in UTC
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