出典:Wiktionary
出典:『Wiktionary』 (2011/07/06 23:36 UTC 版)
osculating orbit (複数形 osculating orbits)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/17 13:11 UTC 版)
In astronomy, and in particular in astrodynamics, the osculating orbit of an object in space (at a given moment of time) is the gravitational Kepler orbit (i.e. ellipse or other conic) that it would have about its central body (corresponding to its actual position and velocity for that given moment of time) if perturbations were not present.