Sample orbits from the posterior of the coplanar fit to PDS 70 b and c only, plotted alongside the astrometry used in the fit. Sample orbits for b and c are shown in blue and red, respectively. Zoomed-in portions of the orbit, containing all the astrometry used in the fit, are shown in the right-hand panels. The new GRAVITY astrometry (see Table 2) is shown in black and literature astrometry in gray. The inset panels zoom in on the new astrometry. The RA and Dec. are given relative to the central star.