When forces among objects obey the inverse square law, regardless whether a particular object will have practical effect on other objects' orbits, the trajectory of that object cannot not be treated as college level mechanics. Since most of the problem in that level deal with a constant acceleration, i.e. g. That is not the case for SVs. Restricted 3-body problem is the most common problem when moon is taking into account. In the case of Chang'e, for example.