Orbit fit of the relative astrometry. The bottom panel shows the full orbits, and the top panel shows a zoom of the observation epochs. Both panels show the same 200 orbit samples that were randomly drawn from the posterior. The orbit with the highest likelihood is shown as the solid gray line, and the residuals of the best fit are normalized by the data uncertainties. The astrometric measurements are shown with colored markers, and their respective epochs of the best-fit model are shown with gray markers and are connected with dotted lines. The planet moves in counterclockwise direction.