What are geostationary satellites and polar satellites?
Geostationary (or synchronous) satellite: When this type of a satellite is used for communication purposes, it is called as communication satellite (Telstar was the first.) Polar satellite: It is a satellite that revolves around the earth in its polar orbit (perpendicular to the equatorial plane).
What is equatorial satellite?
Equatorial satellite is a kind of satellites whose orbital planes coincide with the equatorial plane, the inclination of equatorial satellites could be 0° or 180°. We call 0° inclination orbits as prograde equatorial orbits, and call 180° inclination orbits as retrograde equatorial orbits.
What is Polar satellite and its uses?
Polar orbits are often used for earth-mapping, earth observation, capturing the earth as time passes from one point, reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation also uses a polar orbit to provide telecommunications services.
What is the difference between geostationary satellite and?
This distance puts it in the high Earth orbit category. At any inclination, a geosynchronous orbit synchronizes with the rotation of the Earth. More specifically, the time it takes for the Earth to rotate on its axis is 23 hours, 56 minutes, and 4.09 seconds, which is the same as a satellite in a geosynchronous orbit.
What is the difference between geostationary satellite and Sun synchronous satellite?
Let us summarize difference between Sun synchronous orbit and Geosynchronous orbit. ➨Sun synchronous orbit is located at the altitude of 700 to 800 Km. Geosynchronous orbit is located at altitude of 35786 Km. Geosynchronous orbit period is one sidereal day which is about 23 hours, 56 minutes, and 4 seconds.
What is polar satellite give the uses of polar satellites?
☆1》 Polar satellites are used in weather and environment monitoring. They provide more reliable information than geostationary satellites because their orbits are closed to the earth. ☆2》 They are used in spying work for military purposes.
What are polar satellites used for?
Satellites with polar orbits are used for monitoring the weather, military applications (spying) and taking images of Earth’s surface. Geostationary satellites take 24 hours to orbit the Earth, so the satellite appears to remain in the same part of the sky when viewed from the ground.
Are satellites polar?
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. A satellite in a polar orbit will pass over the equator at a different longitude on each of its orbits.
What is Polar satellite what is its time period and altitude?
Polar (satellite)
Spacecraft properties | |
---|---|
Perigee altitude | 4,198.46 km (2,608.80 mi) |
Apogee altitude | 54,027.15 km (33,570.91 mi) |
Inclination | 78.63° |
Period | 1,109.02 minutes |