Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 2 Jan 2018

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 2 Issued at 2200Z on 02 Jan 2018

IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low 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 levels for the past 24 hours. Solar wind speed reached a peak of 468 km/s at 01/2100Z. Total IMF reached 6 nT at 02/1116Z. The maximum southward component of Bz reached -4 nT at 02/1505Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (03 Jan, 04 Jan, 05 Jan).

III. Event probabilities 03 Jan-05 Jan Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green

IV. Penticton 10.7 cm Flux Observed 02 Jan 070 Predicted 03 Jan-05 Jan 071/071/070 90 Day Mean 02 Jan 073

V. Geomagnetic A Indices Observed Afr/Ap 01 Jan 008/008 Estimated Afr/Ap 02 Jan 005/005 Predicted Afr/Ap 03 Jan-05 Jan 006/005-006/005-006/005

VI. Geomagnetic Activity Probabilities 03 Jan-05 Jan A. Middle Latitudes Active 10/10/10 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/15/15 Major-severe storm 20/15/10

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