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
Famous quotes containing the word state:
“Marriage is the highest state of friendship: If happy, it lessens our cares by dividing them, at the same time that it doubles our pleasures by mutual participation.”
—Samuel Richardson (1689–1761)