Shuttle Course is a term used to describe an ORBIT around a planet or other celestial body. It is a type of trajectory that involves a spacecraft or other object orbiting around a planet or other celestial body, usually in a circular or elliptical path. The term 'shuttle course' is derived from the fact that the spacecraft or object is shuttling back and forth between two points in its ORBIT. The term 'ORBIT' is used to describe the path of the spacecraft or object as it travels around the planet or other celestial body.