Resulting MCMC distribution of the orbital elements of Fom b’s orbit. In all plots, the black curves correspond to the first run using the full Kalas et al. (2013) data, and the red one to the second run using Galicher et al. (2013) data before 2012. Upper row, from left to right: semi-major axis (a), orbital period (P), eccentricity (e); second row, id: periastron (q), inclination (i), longitude of ascending node (Ω); third row, id: argument of periastron (ω), time for periastron passage (t_p), and inclination relative to the disk plane (i_rel).