Inferred potential for the 120 stellar samples, presented in terms of , where z = {100,  200,  300,  400} pc. The samples are listed vertically in terms of area cells, and in subgroups of descending Z_lim. (also labelled by colour according to the legend). Each respective marker shows the median gravitational potential of the inferred posterior distribution, and the marker’s shape represents the height z according to the legend. The horizontal lines represent the posterior widths, whose endpoints are equal to the 16th and 84th percentile of the posterior distribution. The 1σ bands of the expected gravitational potential at the respective heights are shown in grey.