Differences between the M₀ and M₁ log posterior samples with the SE kernel (corresponding to the log posterior ratios) for a set of 15 000 posterior samples mapped as a function of argument of periastron (angle). A uniform prior from 0 to 2π has been set on ω, and all the parameters have been drawn from their corresponding priors. The shown value, sample log posterior difference, does not correspond to the Bayesian evidence Z, but is used as an explorative tool. The radial spread in the difference between ω values of π and 2π is explained by the orbital geometry. The occultation signals are stronger within this interval than on the other half, and the data is able to exclude these signals leading to small log posterior ratio. The occultation signals between ω of 0 and π are too faint to be excluded by the data, and the with-occultation corresponds to the occultation model within uncertainties.