Viewing archive of Wednesday, 8 October 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 Oct 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 281 Issued at 2200Z on 08 Oct 2014IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
08/1651Z from Region 2182 (S16W42). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low on days
one, two, and three (09 Oct, 10 Oct, 11 Oct).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
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
387 km/s at 08/2007Z. Total IMF reached 9 nT at 08/0900Z. The maximum
southward component of Bz reached -8 nT at 08/1014Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 310 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at mostly quiet levels on days one and two (09 Oct, 10 Oct) with a
chance for isolated active periods early on 09 Oct due to an enhanced
magnetic field and possible night sector sub-storming. Quiet to
unsettled levels are expected on day three (11 Oct).
III. Event Probabilities 09 Oct to 11 Oct
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Oct 126 Predicted 09 Oct-11 Oct 125/120/115 90 Day Mean 08 Oct 130
V. Geomagnetic A Indices
Observed Afr/Ap 07 Oct 005/004 Estimated Afr/Ap 08 Oct 006/008 Predicted Afr/Ap 09 Oct-11 Oct 006/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 09 Oct to 11 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 25% |
| Major-severe storm | 20% | 20% | 25% |
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