Viewing archive of Thursday, 2 January 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 Jan 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 2 Issued at 2200Z on 02 Jan 2014IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z 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
02/0233Z from Region 1944 (S08E64). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a chance for X-class flares on days one, two, and three (03 Jan, 04
Jan, 05 Jan).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 666 km/s at 02/2059Z. Total IMF reached 10 nT at 01/2155Z. The
maximum southward component of Bz reached -6 nT at 02/0152Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 1780
pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (03 Jan, 04 Jan)
and quiet levels on day three (05 Jan). Protons have a slight chance of
crossing threshold on days one, two, and three (03 Jan, 04 Jan, 05 Jan).
III. Event Probabilities 03 Jan to 05 Jan
| Class M | 75% | 75% | 75% |
| Class X | 30% | 30% | 30% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jan 161 Predicted 03 Jan-05 Jan 165/170/170 90 Day Mean 02 Jan 145
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jan 011/015 Estimated Afr/Ap 02 Jan 015/019 Predicted Afr/Ap 03 Jan-05 Jan 011/010-008/008-006/005
VI. Geomagnetic Activity Probabilities 03 Jan to 05 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 05% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 30% | 25% | 15% |
| Major-severe storm | 25% | 20% | 05% |
All times in UTC
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