Orbital projections during the Kepler observations for planet b (green), planet c (red), and the star (blue). The origin is the system barycentre, the movement is clockwise, and the orbits are projected in the X-Z reference plane, with the positive Z-axis pointing towards the observer. The two rightmost panels are successive zooms of the panel on the left. A thousand random orbits are drawn form the posterior samples, and the MAP is shown as a black orbit. The red points in the leftmostpanel mark the position of planet c on the MAP orbit at the epochs of transits of planet b, numbered accordingly.