Viewing archive of Thursday, 9 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 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 282 Issued at 2200Z on 09 Oct 2014IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
09/0158Z from Region 2182 (S14W58). There are currently 4 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (10 Oct, 11 Oct,
12 Oct).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
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
397 km/s at 09/0122Z. Total IMF reached 9 nT at 09/1333Z. The maximum
southward component of Bz reached -7 nT at 09/0115Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 118 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (10 Oct, 11 Oct)
and quiet levels on day three (12 Oct).
III. Event Probabilities 10 Oct to 12 Oct
| Class M | 40% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Oct 119 Predicted 10 Oct-12 Oct 120/120/115 90 Day Mean 09 Oct 130
V. Geomagnetic A Indices
Observed Afr/Ap 08 Oct 006/007 Estimated Afr/Ap 09 Oct 013/015 Predicted Afr/Ap 10 Oct-12 Oct 007/008-007/008-006/005
VI. Geomagnetic Activity Probabilities 10 Oct to 12 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% | 25% | 20% |
| Major-severe storm | 25% | 25% | 20% |
All times in UTC
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