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A polar orbit is an Orbit in which a Satellite passes above or nearly above both of the Geographical poles of the body (usually a planet such as the Earth, but possibly another body such as the Sun being orbited on each revolution. It therefore has an Inclination of (or very close to) 90 degrees to the Equator. Except in the special case of a polar Geosynchronous orbit, a satellite in a polar orbit will pass over the equator at a different Longitude on each of its orbits.
A geostationary orbit (GEO) is a circular orbit directly above the Earth's Equator From the ground, a geostationary object appears motionless in the sky and is therefore the Orbit of most interest to operators of Communication Satellites. Their orbital periods (time taken to revolve around earth) is exactly the same as the planet's (such as Earth's) rotational period. The Geosynchronous orbit is approximately 36,000 km above Earth's surface.
geostionary satellites are positioned at an exact height above the earth, at this height they orbit the earth at the same speed at which the earth rotates on its axis whereas polar satellites have a much lower orbit, orbiting the earth quite quickly, scanning different areas of the earth at fairly infrequent periods.
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RossSatellites orbit in various times depending on their altitude. Geostationary satellites are, in fact, orbiting satellites. But there is one primary difference between them and other orbiting satellites. If a satellite is at approximately 35,786 km (22,240 miles) over the equator, then it will take exactly 24 hours to orbit and appear to be stationary from the Earth. A satellite in this orbit is said to be geostationary. And this satellite will be ideal for use as a communication satellite because a satellite dish on Earth does not have to move to track the satellite across the sky. ---- Because a geostationary satellite is synchonized with the Earth's rotation in this manner, it does not orbit "around" the world as other satellites do.
A satellite in a polar orbit passes over both poles on each orbit. The earth rotates under that orbit so in a short time a satellite in polar orbit will pass over most of the earth's surface.
A satellite in geostationary orbit is in an orbit over the equator at a distance of 22,500 miles above the surface. At that distance, its angular motion in orbit is the same as the earth's angular rotation, so it stays above the same spot on the earth's surface and so seems to be stationary to someone standing on the earth.
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What is the difference between a Landsat satellite and a GOES satellite?
Among one of many differences is that Landsat is Polar-orbiting while GOES is geostationary. This also means that GOES is much further above the surface, so the resolution is poorer.
What type of orbit does a weather satellite have and why?
The polar orbit so that it can measure cold and hot points around the entire earth :)
Why a polar orbit is not suitable for satellite television?
it is too cold and there is no power lines to get signal
Why are there places on earth that experience polar days and polar nights?
i think because of the Earth's elliptical orbit, less sunlight reaches these places at the aphelion. =)
What is the Difference between PSLV and GSLV?
Both PSLV (Polar Satellite Launch Vehicle) and GSLV are (Geosynchronous Satellite Launch Vehicle) are launch Indian vehicles used to launch satellites into polar orbit and geosyncronous orbits respectively. The PSLV can launch satellites into sun synchronous orbits i. e. in such a way that an object on that orbit passes over any given point of the Earth's surface at the same local solar time. The GSLV launch satellites into geostationary orbit. Geostationary orbits cause a satellite to appear stationary with respect to a fixed point on the rotating Earth. That is, if you were standing directly below a geosyncronous satellite it would always be directly above you. The PSLV is a four-stage launch vehicle with the first stage being solid-propelled, the second liquid-propelled and third solid and the final stage cryogenic liquid. It required parts obtained from Russia. The GSLV is a three-stage launch vehicle with the first stage being solid-propelled, the second liquid-propelled and the final stage being cryogenically propelled. It was developed by India partly to free itself from dependence on Russia.
