Hi Romain,
Alright, in that case i will specify that it is up to the user to determine if the assumption is valid or not given the output of the method and the orbital period of both objects.
Speaking of the method, i am currently implementing it inside the ShortTermEncounterDefinition class as it seems more fit for the job (it already computes everything related to the conjunction). As it also serve as an input for the probability computing methods, I think it will make more sense to the user to get the duration before actually computing the probability.
As always, thank you for your insight !
Vincent