Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 6 Jan 2018

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 6 Issued at 2200Z on 06 Jan 2018

IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (07 Jan, 08 Jan, 09 Jan).

IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 319 km/s at 06/0014Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and three (07 Jan, 09 Jan) and quiet to active levels on day two (08 Jan).

III. Event probabilities 07 Jan-09 Jan Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green

IV. Penticton 10.7 cm Flux Observed 06 Jan 069 Predicted 07 Jan-09 Jan 070/070/070 90 Day Mean 06 Jan 072

V. Geomagnetic A Indices Observed Afr/Ap 05 Jan 005/004 Estimated Afr/Ap 06 Jan 004/004 Predicted Afr/Ap 07 Jan-09 Jan 008/005-008/008-007/012

VI. Geomagnetic Activity Probabilities 07 Jan-09 Jan A. Middle Latitudes Active 15/30/15 Minor Storm 05/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/15/20 Minor Storm 25/30/25 Major-severe storm 20/40/20


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