Hey folks wondering if anyone knows some good books on the following subjects... Orbital transfers, specifically to Lagrange points with information on stable/unstable manifolds. Control theory of satellites, new to control theory so perhaps I should be looking at a general control theory book first. Ultimately I'd like to learn how satellites orbits are controlled and move on to solar sail control theory (for which I will be looking at "Solar sailing: technology, dynamics, and mission applications" by Colin McInnes) Numerical integration, specifically symplectic integration. Any other books that give detailed descriptions of how satellite orbits are calculated, modelled, etc. Thanks.