handcar railroad; handcar railway
continuous track; caterpillar track
to be on track; to be going to plan; to enter orbit
course correction; trajectory change; orbital adjustment
trackless; reckless; dissipated
to put on track; to make go to plan; to put into orbit; to send into orbit
geostationary orbit; geosynchronous orbit
low orbit; low Earth orbit; LEO
orbit insertion (e.g. a satellite); orbital injection
trajectory-shifting (e.g. missile)
track-maintenance car; inspection car
semi-major axis (esp. in orbital matters)
ICO; Intermediate Circular Orbit
semi-minor axis (esp. in orbital matters)
railway line; tramway line
rail track laid on a road
hybrid orbital; hybridized orbital