- Status Report
- Feb 6, 2023
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 6 February 2017
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 37 Issued at 2200Z on 06 Feb 2017
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 Feb, 08 Feb, 09 Feb).
IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 688 km/s at 06/0033Z. Total IMF reached 5 nT at 05/2302Z. The maximum southward component of Bz reached -3 nT at 06/1450Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 16600 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (07 Feb, 08 Feb) and quiet to unsettled levels on day three (09 Feb).
III. Event probabilities 07 Feb-09 Feb
Class M 01/01/01
Class X 01/01/01
IV. Penticton 10.7 cm Flux
Observed 06 Feb 073
Predicted 07 Feb-09 Feb 073/073/074
90 Day Mean 06 Feb 077
V. Geomagnetic A Indices
Observed Afr/Ap 05 Feb 011/013
Estimated Afr/Ap 06 Feb 009/010
Predicted Afr/Ap 07 Feb-09 Feb 010/012-011/012-009/008
VI. Geomagnetic Activity Probabilities 07 Feb-09 Feb
A. Middle Latitudes
Minor Storm 10/05/05
Major-severe storm 01/01/01
B. High Latitudes
Minor Storm 30/20/20
Major-severe storm 40/25/20