Three exemplary orbit models that fit the astrometric data and the system mass, but are not coplanar with the disk. The semi-major axes of the orbits are 35 AU, 85 AU, and 137 AU. The last orbit has the minimal χ², and its line of nodes is marked by the dash-dotted line and its periastron by the dashed line. The observed positions are marked by their error ellipses and lines connecting the observed and calculated position at the time of the observations. The new observations with NACO are marked by crosses. Their errors are too small to be discernible.