Marginalised posterior distributions of the systems’ orbital parameters for the Gaia-only run (in black) as well as the Gaia-plus-GRAVITY run (in green). Note that the Gaia-plus-GRAVITY chain converges on two different orbital solutions for the CD-50 869 system. The bimodal posterior distribution was separated into the preferred (green) and the secondary solution (purple). The indices 1 denote that the shown parameters describe the host star’s orbit around the respective system’s COM.