In What are the choices today for orbital mechanics simulation software?, an entire range of software was listed for many platforms. I'd like to narrow this down a bit. Specifically, two questions:
- Which of these software packages, if any, can perform trajectory analysis for deep-space probes, including calculating gravity assists?
- For those of you familiar with NASA's Copernicus trajectory analysis package, how do these compare?
"Deep-space", for the purposes of this question, includes currently known Trans-Neptunian Objects (TNO). Also, you need not limit yourself to the specific packages mentioned in the above referenced question.