Could you please use real physical values for solar system bodies? For example, using your own "moon orbit" scenario, we get an orbit with Periaxis altitude = 58.13 km and Apoaxis = 171.49 km. With such an orbit we should have Periaxis velocity = 1678 m/s and Apoaxis velocity = 1578 m/s. But the spacecraft has velocicty of only 1551 m/s at Periaxis. Like if "your" moon had a much lower mass than the real one...
