it is too cold and there is no power lines to get signal
The polar orbit so that it can measure cold and hot points around the entire earth :)
it carries the the satellite over the earths north and south poles
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.
Which are usually launched in polar orbite and these polar orbit lie around north and south poles of earth and their angle with equitorial plane is 90'
polar satallite
From a polar orbit, a satellite can observe over time anypoint on the globe from directly above it.
a polar satellite is a satellite that travels around the earth passing over both poles with every orbit. they are use for mapping and spying
A polar orbit (as opposed to an equatorial orbit) passes over the poles, north and south. A low orbit is relatively close to the Earth (or other object being orbited), it might be a few hundred miles up.
A polar orbit or high-inclination orbit. In polar orbit, the satellite passes over the world from pole to pole, while the Earth spins beneath it. Each orbit would cover a different area.
From the question, I'm guessing that when the questioner reads the term "polar orbit", he's picturing the satellite doing a little tiny circle in the sky over the North Pole. This is not an accurate understanding of the term. Remember that the center of the orbit of an artificial satellite has to be at the center of the earth. A 'polar orbit' is an orbit that covers both poles. If you picture the globe of the earth, the satellite's orbit is a circle standing up, with the satellite traveling up and down, passing over both poles in each complete revolution of the earth. As the earth rotates, every point on earth passes under the orbit, and sooner or later, every point on earth will be visible from the satellite.
The polar orbit so that it can measure cold and hot points around the entire earth :)
Primarily photo or radar reconnaissance.
Polar Orbit
No, all satellites do not orbit Earth at the same altitude. An good overview of this can be found on http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx. This overview reviews Low Earth Orbit, Medium Earth Orbit and Geostationary Orbits.
A satellite in a polar orbit orbits from north to south. As the earth turns, it passes over all the surface area of the earth. Therefore, polar orbits are ideal for detecting things on the planet's surface.
it carries the the satellite over the earths north and south poles
A satellite in polar orbit passes over the poles.A geosynchronous orbit follows the equator and at such an altitude its orbital period is one day long and remains in the same position relative to the ground.