Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 3 Jan 2018

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 3 Issued at 2200Z on 03 Jan 2018

IA. Analysis of Solar Active Regions and Activity from 02/2100Z to 03/2100Z: 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 (04 Jan, 05 Jan, 06 Jan).

IIA. Geophysical Activity Summary 02/2100Z to 03/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 419 km/s at 02/2143Z. Total IMF reached 5 nT at 03/0754Z. The maximum southward component of Bz reached -4 nT at 03/0724Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (04 Jan, 05 Jan, 06 Jan).

III. Event probabilities 04 Jan-06 Jan Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green

IV. Penticton 10.7 cm Flux Observed 03 Jan 071 Predicted 04 Jan-06 Jan 071/070/070 90 Day Mean 03 Jan 073

V. Geomagnetic A Indices Observed Afr/Ap 02 Jan 004/003 Estimated Afr/Ap 03 Jan 005/005 Predicted Afr/Ap 04 Jan-06 Jan 006/005-006/005-005/005

VI. Geomagnetic Activity Probabilities 04 Jan-06 Jan 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 15/10/10


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