I feel like I'm too dumb for this. Can someone explain further? Let's say I want to get to Duna from Kerbin at a 100km parking orbit. The calculator that Olex made is helpful, if I knew how to use it. Also, I am using MechJeb. What is a Phase Angle, and how do I get there? 44.36° What is an ejection angle, and how do I get there? 150.91° What is an ejection velocity and how to I get there? 3289.2 m/s If just someone could explain further and much clearer, then I can figure this out, but these to me are just random numbers.