Marginalized posterior probability distributions of each model parameter for several combinations of observations in the no-, thin- and thick-cloud scenarios (top, middle, and bottom row, respectively). Blue lines mark the combination (37°+85°); red lines, (37°+123°) and black lines, (37°+85°+123°). For reference, cyan lines indicate the results of a single-phase observation at α = 37° but doubling the S/N to 20. Green lines mark the true values of the model parameters (see Sect. 3.1) for this observation. The 2D posterior probability distributions for these retrievals can be found in Figs. B.1−B.3.