Viewing archive of Wednesday, 30 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 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 30 Issued at 2200Z on 30 Jan 2013IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be at very
low to low levels on days one, two, and three (31 Jan, 01 Feb, 02 Feb).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
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 372 km/s at
30/0002Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 171 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels for the next three days (31 Jan, 01 Feb, 02 Feb).
III. Event Probabilities 31 Jan to 02 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Jan 097 Predicted 31 Jan-02 Feb 100/100/105 90 Day Mean 30 Jan 119
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jan 002/001 Estimated Afr/Ap 30 Jan 002/002 Predicted Afr/Ap 31 Jan-02 Feb 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 31 Jan to 02 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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