is also used for flights to the ISS of H-II Transfer Vehicles, and of SpaceX Dragon vehicles. Z-bar approach An approach of the active, or "chaser", spacecraft horizontally from the side and orthogonal to the orbital plane of the passive spacecraft—that is, from the side and out-of-plane of the orbit of the passive spacecraft—is called a Z-bar approach. See also Androgynous Peripheral Attach System Clohessy-Wiltshire equations for co-orbit analysis Common Berthing Mechanism Deliberate crash landings on extraterrestrial bodies Flyby (spaceflight) Lunar orbit rendezvous Mars orbit rendezvous Nodal precession of orbits around the Earth's axis Path-constrained rendezvous is the process of moving an orbiting object from its current position to a desired position, in such a way that no orbiting obstacles are contacted along the way Soyuz Kontakt References External links Analysis of a New Nonlinear Solution of Relative Orbital Motion by T. Alan Lovell The Visitors (rendezvous) Handbook Automated Rendezvous and Docking of Spacecraft by Wigbert Fehse Docking system agreement key to global space policy – October 20, 2010 Astrodynamics Orbital maneuvers 1965 introductions Projects established in 1965