Hello experts, I would be glad if anyone could help me find out some basic beginners materials on ORBITAL MECHANICS. I am looking for ones that would help me understand the practical and technical aspects of launching a satellite, maintaining it in an orbit, changing orbits, results of collisions, the energy requirements to keep a space station in orbit and so on. I would be happy to deal with materials that handle core basics and explain these stuff in terms of basic Physics laws. I request you to kindly offer me some help regarding the above. Thanking You in advance..