Results of the MCMC fit of the astrometric data of β Pic b: statistical distribution of the orbital elements a (top left), e (top middle), i (top right), Ω (bottom left) and ω (bottom middle). We also show the distribution of for the solutions obtained (bottom right). In each plot, the blue line show the results of our MCMC study. The dot-dashed line indicates the position of the best-fit LSLM model obtained, and the –dashed line shows the position of an example of highly probable orbits according to our MCMC study see (Table 3). The results of our MCMC study using the dataset of Currie et al. (2011) are indicated by a red line.