Top:stability of the trajectories integrated from 2300 posterior samples, ranging from stable (blue) to unstable (red). Middle: green dots show the projection of 2300 randomly selected samples of the posterior summarised in Table 2. Gold dots show the theoretical posterior discussed in Sect. 5.2. Bottom: smallest semi-amplitude between the two resonant angles (Eq. (6)). Grey dots indicate a circulation of both of them.