Presentation is loading. Please wait.

Presentation is loading. Please wait.

Satellites Smaller bodies orbiting larger ones. How big are satellites? ► The moon is a satellite of earth ► The earth is a satellite of the sun ► A satellite.

Similar presentations


Presentation on theme: "Satellites Smaller bodies orbiting larger ones. How big are satellites? ► The moon is a satellite of earth ► The earth is a satellite of the sun ► A satellite."— Presentation transcript:

1 Satellites Smaller bodies orbiting larger ones

2 How big are satellites? ► The moon is a satellite of earth ► The earth is a satellite of the sun ► A satellite orbits a larger body

3 Geostationary satellites ► Located above the same point of the earth’s surface ► One orbit takes 24 hours ► Approximately km from the centre of the earth ► Beyond the atmosphere – no air resistance

4 Geostationary satellites ► Signal weakens as you get nearer the poles which are dead zones Earth Satellite Signal

5 Spy satellites ► In polar orbit ► Lower and faster than geostationary satellites ► Pass over both poles ► Earth turning as they travel, so the entire earth can be scanned ► High resolution images

6 Polar Orbits ► Passes over the poles

7 GPS ► Global positioning system ► Mainly geostationary, backed up with others. ► Military and civilian uses ► Up to 30m accuracy


Download ppt "Satellites Smaller bodies orbiting larger ones. How big are satellites? ► The moon is a satellite of earth ► The earth is a satellite of the sun ► A satellite."

Similar presentations


Ads by Google