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Reference.org
Orbital maneuver
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<p>In <a href="/facts/Spaceflight/zPrnATzo">spaceflight</a>, an orbital maneuver (otherwise known as a burn) is the use of <a href="/facts/Spacecraft_propulsion/KmpMGU9u">propulsion</a> systems to change the <a href="/facts/Orbit/nD2TPySG">orbit</a> of a <a href="/facts/Spacecraft/YQqQaUw0">spacecraft</a>. For spacecraft far from Earth, an orbital maneuver is called a <i>deep-space maneuver (DSM)</i>. </p><p>When a spacecraft is not conducting a maneuver, especially in a <a href="/facts/Transfer_orbit/Ve2q74Xy">transfer orbit</a>, it is said to be <i>coasting</i>. </p>