MCMC simulation for the parameters of the orbit of HD 142527B. We assumed μ = 3.2 × 10^-5 arcsec³/ yr². All angles are in degrees. Ascending node is calculated for a range of values between −90 and 90 degrees. For comparison, the inner disk as simulated by Casassus et al. (2015a) as a position angle (PA) for the ascending node of −3 degrees, and an inclination with respect to the plane of the sky of 43 degrees (equivalent to 137 degrees following the convention that a clockwise system has an inclination between 90 and 180 degrees).