SOLAR SYSTEM

Detailed explanation-1: -Satellites in polar orbits usually travel past Earth from north to south rather than from west to east, passing roughly over Earth’s poles. Satellites in a polar orbit do not have to pass the North and South Pole precisely; even a deviation within 20 to 30 degrees is still classed as a polar orbit.

Detailed explanation-2: -Communication satellites are also referred as Polar satellites. Polar satellites are those satellites that passes above or nearly above both the poles of the body orbited on each revolution and hence it has very close inclination of 90 degree’s to the body’s equator.

Detailed explanation-3: -Polar orbits are used for reconnaissance and Earth observation. If a satellite is in polar orbit at an altitude of 800 km, it will be travelling at a speed of approximately 7.5 km per second. These orbits mainly take place at low altitudes of between 200 to 1000 km.

Detailed explanation-4: -NOAA has four POES, Polar Operational Environmental Satellites, currently in orbit. The satellites are named chronologically, based on launch date.

Detailed explanation-5: -A polar satellite goes around the earth’s pole in north-south direction. A geostationary satellite goes around the earth in west-east direction.