Viewing archive of Saturday, 5 January 2013
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 2013 Jan 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 5 Issued at 2200Z on 05 Jan 2013IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z 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
05/0931Z from Region 1652 (N20E74). There are currently 14 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be at low
levels with a chance for M-class flares on days one, two, and three (06
Jan, 07 Jan, 08 Jan).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 361 km/s at
04/2209Z. Total IMF reached 5.2 nT at 05/1138Z. The maximum southward
component of Bz reached -3.5 nT at 04/2306Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet on day 1 (06 Jan). Quiet to unsettled levels are
expected on days 2-3 (07 Jan, 08 Jan).
III. Event Probabilities 06 Jan to 08 Jan
| Class M | 35% | 35% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Jan 145 Predicted 06 Jan-08 Jan 145/140/135 90 Day Mean 05 Jan 119
V. Geomagnetic A Indices
Observed Afr/Ap 04 Jan 002/001 Estimated Afr/Ap 05 Jan 002/002 Predicted Afr/Ap 06 Jan-08 Jan 005/005-006/008-006/008
VI. Geomagnetic Activity Probabilities 06 Jan to 08 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 10% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 20% | 20% |
| Major-severe storm | 05% | 15% | 15% |
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