| A | B |
|---|
| satellite | any object that orbits around another object |
| artificial satellite | receive and transmit valuable information |
| transmit | to take information from one place and send it to another |
| navigation | act or process of directing the course of a system of transportation |
| Low Earth Orbit (LEO) | easy to reach, good for space shuttle missions - under 2,000km from earth's surface |
| Geosynchronous Orbit | always over the same spot, good for a communications satellite, means "same time as the earth." |
| monitor | to watch closely for purposes of control |
| horizontal | at right angles to the vertical; parallel to level ground |
| rotation | the act of rotating; a turning around as on an axis. |
| orbit | the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun. |
