Posterior probability distributions of the model parameters for single-phase observations in the no-cloud atmospheric configuration at phase angles 37° (cyan), 85° (magenta), and 123° (yellow). In all cases, S∕N = 10. Green lines mark the true values of the model parameters (see Sect. 3.1) for this scenario. Two-dimensional subplots show the correlations between pairs of parameters. Contour lines correspond to the 1 σ confidence levels. A detailed description of the parameter correlations with additional σ levels in the 2D subplots can be found in Carrión-González et al. (2020) for measurements at α = 0°.