[SEJeff]

This thing has changed orbits many many times over its several missions:

https://www.space.com/9000-secret-37b-space-plane-changed-or...

https://www.popularmechanics.com/military/a28496447/x-37b-di...

http://spaceflight101.com/x-37b-space-plane-maneuvers-into-l...