Fig. 5
From: The first super geomagnetic storm of solar cycle 24: “The St. Patrick’s day event (17 March 2015)”
MC of 17 March 2015. This is a good-quality (Q o = 1) example of the use of the Lepping et al. (1990) MC-fitting model where the points are the observed magnetic field data (in 15 min average form), and the solid-black curves are the result of the model. a The left six panels are given in the cloud coordinates (CL) in terms of magnetic field in x-, y-, z-components (B x , B y , B z ), field intensity (|B|), latitude (θ B ), and longitude (ϕ B ), and b the right six panels, for the same physical quantities, are in geocentric-solar-ecliptic (GSE) as designated. The dashed vertical line is the estimated MC start-time (see Table 2), and the solid vertical line is the estimated end time