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Pseudo-orbit classifications

* Horseshoe orbit: An orbit that appears to a ground observer to be orbiting a certain planet but is actually in co-orbit with the planet. See asteroids 3753 (Cruithne) and 2002 AA29.
* Exo-orbit: A maneuver where a spacecraft approaches the height of orbit but lacks the velocity to sustain it.
o Suborbital spaceflight: A synonym for exo-orbit.
* Lunar transfer orbit (LTO)
* Prograde orbit: An orbit with an inclination of less than 90°. Or rather, an orbit that is in the same direction as the rotation of the primary.
* Retrograde orbit: An orbit with an inclination of more than 90°. Or rather, an orbit counter to the direction of rotation of the planet. Apart from those in sun-synchronous orbit, few satellites are launched into retrograde orbit because the quantity of fuel required to launch them is much greater than for a prograde orbit. This is because when the rocket starts out on the ground, it already has an eastward component of velocity equal to the rotational velocity of the planet at its launch latitude.
* Halo orbit and Lissajous orbit: Orbits "around" Lagrangian points.

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