Sattelites launched from earth are generally kept in any one of the two orbits:-
1 polar orbit 2 orbit parallel to the equator....
polar satellites require fuel and they obtain it from the sun due to the solar panels on it....
geostationary satellites are launched in an orbit parallel to the equator and they revolve around the earth and are usually at a great hieght of the earth.....i dunno the exact figure but it is something like 35,786 km from the earth..... thus they usually form an angle of 90 degrees with the earths radius.....i.e if earth is considered as a sphere and then its radius is extended..... and the height at which they are launched is nearly equal to the hieght of the moon... so when seen they appear geostationary to us..... so they do not require any fuel....for their revolution..
Moderation Team
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