Assertion: spacecraft's orbit | /r/HasProperty | borderline case
Facets:
value: between open and closed orbits
type: LOCATION
Source sentences:
text: The parabolic orbit is the Borderline case between open and closed orbits and therefore identifies the border line condition between space vehicles that are tied to paths (elliptical) in the general vicinity of their parent planet and those that can take up paths (hyperbolic) extending to regions remote from their parent planet.