State vector

• A state vector in general control systems describes the observed states of an object in state space, e.g. in variables of the degrees of freedom for motion (i.e. translatory variables distance, velocity and acceleration for location and orientation in e.g. any right handed system of coordinates).
• A quantum state vector fully specifies any quantum mechanical state in which a quantum mechanical system can be.
• A geographical state vector specifies the position and velocity of an object in any location on Earth's surface or beyond in interstellar space.
• Orbital state vectors are vectors of position and velocity that together with their time, uniquely determine the state of an orbiting body in astrodynamics or celestial dynamics.