A satellite is any object which orbits another object. All bodies that are part of the solar system, for example the Earth and Jupiter, are satellite.Most of these bodies orbit the sun,but others orbit planets.For example,the moon orbits the Earth.When we use the term satellite, we usually mean artificial satellite.This is a man- made object that orbits the Earth , or another body.However, scientist may also use the term for natural satellites, or moons.