Marginalized distributions for four orbital parameters (histograms) along with their joint posteriors (grayscale images with contours) for the β Pic system. In histograms, the thick solid lines indicate the highest likelihood orbit, and dashed and dotted lines show 1σ and 2σ ranges, respectively. In 2D plots, the 1σ and 2σ areas of the joint posteriors are indicated by dark dashed contours and lighter dotted contours, respectively. The strongest covariance is between eccentricity and semimajor axis such that both smaller, less eccentric and larger, more eccentric orbits are consistent with observations. Given the positive correlation between semimajor axis and period (not shown), less eccentric orbits also correspond to shorter orbital periods.