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In spaceflight, an orbital maneuver (otherwise known as a burn) is the use of propulsion systems to change the orbit of a spacecraft. For spacecraft far from Earth (for example those in orbits around the Sun)[clarification needed] an orbital maneuver is called a deep-space maneuver (DSM).[1]
When a spacecraft is not conducting a maneuver, especially in a transfer orbit, it is said to be coasting.