Relative angular momentum
- Relative angular momentum
In astrodynamics, the relative angular momentum () of an orbiting body () relative to a central body () is the moment of ()'s relative linear momentum::where:
* is the orbital position vector of the orbiting body relative to the central body,
* is the orbital velocity vector of the orbiting body relative to the central body,
* is mass of the orbiting body.
For an body orbiting a central body is always perpendicular to the osculating orbital plane determined by orbital position and velocity vectors.
Uses
In astrodynamics relative angular momentum is usually used to derive specific relative angular momentum ()::where:
* is mass of the orbiting body.
ee also
*Specific relative angular momentum
*Linear momentum
*Momentum
References
Wikimedia Foundation.
2010.
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