Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 9 Mar 17:01

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 68 Issued at 2200Z on 09 Mar 2018

IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: 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 (10 Mar, 11 Mar, 12 Mar).

IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 438 km/s at 09/1842Z. Total IMF reached 9 nT at 09/2041Z. The maximum southward component of Bz reached -5 nT at 09/0120Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day (10 Mar) and quiet levels days two and three (11 Mar, 12 Mar).

III. Event probabilities 10 Mar-12 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green

IV. Penticton 10.7 cm Flux Observed 09 Mar 068 Predicted 10 Mar-12 Mar 068/068/068 90 Day Mean 09 Mar 071

V. Geomagnetic A Indices Observed Afr/Ap 08 Mar 003/004 Estimated Afr/Ap 09 Mar 008/009 Predicted Afr/Ap 10 Mar-12 Mar 006/005-006/005-006/005

VI. Geomagnetic Activity Probabilities 10 Mar-12 Mar 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 20/20/20 Major-severe storm 15/10/10


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