Posteriors of the MCMC exploration of the parameter space for the disk seen in NIR (1.6 μm) SPHERE observations in polarized and total intensity. The vertical dashed lines represents the values of the median and at ±1σ, which are defined as the 15.9% and 84.1% percentiles to encompass 68.2% of the solutions for a given parameter. The blue vertical line represent the best-fitting parameters, which are the values minimizing the ${\chi }_r^2$.