In astrodynamics or celestial dynamics **orbital state vectors** (sometimes **state vectors**) are cartesian vectors of position and velocity that together with their time (epoch) uniquely determine the trajectory of a body in space.

Read more about Orbital State Vectors: Frame of Reference, Position Vector

### Other articles related to "vector, orbital, orbital state vectors, state vector, state":

Eccentricity Vector - Calculation

... The eccentricity

... The eccentricity

**vector**can be calculated where is**orbital**velocity**vector**, is**orbital**angular momentum**vector**, is**orbital**position**vector**, is standard gravitational ... or equivalently from the**orbital state vectors**by where is velocity**vector**of the**orbital state vectors**, is position**vector**of the**orbital state vectors**, is ...**Orbital State Vectors**- Position Vector - Derivation

... The velocity

**vector**can be derived from position

**vector**by differentiation with respect to time An object's

**state vector**can be used to compute its classical or Keplerian

**orbital**elements and vice ... quickly and easily estimate the object's

**state**at any arbitrary time provided its motion is accurately modeled by the two-body problem with only small ... On the other hand, the

**state vector**is more directly useful in a numerical integration that accounts for significant, arbitrary, time-varying forces such as drag, thrust and gravitational perturbations from third ...

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—Henry David Thoreau (1817–1862)

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