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Why satellites are placed at an altitude of 36000 km is there any reason for such an long altitude pls answer thanks in advance?
Wiki User
∙ 13y ago
The closer to the Earth, the faster the orbit; this is basic math, as determined Johannes Kepler centuries ago. The higher the orbit, the slower the satellite goes.
IN 1947, Science Fiction writer Arthur C. Clarke wrote an article and a story based on the curious coincidence that if a satellite were placed in an equatorial orbit 23,000 miles (or 36,000 km) up, the satellite would orbit the Earth at precisely the speed that the Earth itself turns. The satellite would appear to be suspended, motionless, in the sky!
Since an Earth-based antenna would not need any rotors or pointing mechanisms to track an unmoving satellite, the antenna could be made larger - MUCH larger.
We now call that orbit "geo-synchronous", and that's where we park communications satellites, and TV satellites.
It didn't occur to Arthur Clarke to patent his invention; and because he did not, the satellite communications revolution proceeded unimpaired by patent lawsuits.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoAt 36000 km, the velocity of the satellite determined by the need to balance the gravitational pull of the earth results in 24 hrs to complete the orbit and thus making it geostationary.
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