Categories: Astrodynamics | Celestial mechanics
In astrodynamics relative angular momentum () of orbiting body () relative to central body () is the moment (physics) of ()'s relative linear momentum:
where:
For body orbiting a central body is always perpendicular to the osculating orbital plane determined by orbital position and velocity vectors.
In astrodynamics relative angular momentum is usually used to derive specific relative angular momentum ():
) of 
) relative to 
) is the 
is 
is 
):
