 CAPSTONE (spacecraft)

CAPSTONE (Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment) is a planned lunar orbiter that will test and verify the calculated orbital stability planned for the Lunar Gateway space station.The spacecraft is a small 12-unit CubeSat that will also test a navigation system that will measure its position relative to NASA's Lunar Reconnaissance Orbiter (LRO) without relying on ground stations.