Viewing archive of Tuesday, 26 January 2016
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 2016 Jan 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 26 Issued at 2200Z on 26 Jan 2016IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
26/1715Z. There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on day one (27 Jan) and likely to be
low on days two and three (28 Jan, 29 Jan).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
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 406 km/s at
26/0014Z. Total IMF reached 6 nT at 26/1718Z. The maximum southward
component of Bz reached -2 nT at 26/1142Z. Electrons greater than 2 MeV
at geosynchronous orbit reached a peak level of 2117 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (27 Jan) and quiet to
unsettled levels on days two and three (28 Jan, 29 Jan).
III. Event Probabilities 27 Jan to 29 Jan
| Class M | 10% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Jan 115 Predicted 27 Jan-29 Jan 112/112/110 90 Day Mean 26 Jan 109
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jan 003/002 Estimated Afr/Ap 26 Jan 004/004 Predicted Afr/Ap 27 Jan-29 Jan 010/012-009/010-007/008
VI. Geomagnetic Activity Probabilities 27 Jan to 29 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 20% |
| Minor storm | 30% | 20% | 25% |
| Major-severe storm | 30% | 20% | 20% |
All times in UTC
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