a) Occ. A’s chords and value of the minor axis of the ellipse, determined using Eq. 8 and 9 for the prograde rotation. b) Same for Occ. C. Both solutions are consistent with the projected ellipse in Fig. C.1. To the right of each plot is included the position angle of the rotation pole (θ_p), and minor axis of the projected ellipse (θ_v), as well as the rotational phase and aspect angles.