Unit 13 · Information and Communication TechnologyArtificial Satellites and Their Uses
Key Words of This Topic
- ICT: electronic means of storing, processing and sending information
- Artificial satellite: a man-made object that circles the Earth
- Orbit: the fixed path a satellite follows
- Ground station: a station on Earth that exchanges signals with a satellite
- Uplink signal: a signal going up from Earth to a satellite
- Downlink signal: a signal coming down from a satellite to Earth
- Orbital period: the time for one full trip around the Earth
- Rotational period: the time the Earth takes to spin once on its axis
- GPS: the satellite system that finds positions on Earth
- Cubical nanosatellite: a small cube-shaped satellite