Viewing archive of Friday, 1 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 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 1 Issued at 2200Z on 01 Jan 2016IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
01/0948Z from Region 2473 (S21W73). There are currently 3 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 (02 Jan) and expected to
be very low with a chance for a C-class flares on days two and three (03
Jan, 04 Jan).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at quiet to major storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 537 km/s at 01/0924Z. Total IMF reached 16 nT at 31/2100Z. The
maximum southward component of Bz reached -15 nT at 31/2105Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 1465
pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one, two, and three (02 Jan, 03
Jan, 04 Jan). Protons greater than 10 Mev have a slight chance of
crossing threshold on day one (02 Jan).
III. Event Probabilities 02 Jan to 04 Jan
| Class M | 20% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 10% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jan 098 Predicted 02 Jan-04 Jan 100/100/100 90 Day Mean 01 Jan 109
V. Geomagnetic A Indices
Observed Afr/Ap 31 Dec 025/051 Estimated Afr/Ap 01 Jan 018/028 Predicted Afr/Ap 02 Jan-04 Jan 014/018-014/018-011/012
VI. Geomagnetic Activity Probabilities 02 Jan to 04 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 45% | 45% | 40% |
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