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Satellite Communication - Engineering

Q1:

Which of the following factor does NOT contribute to the drift of a geostationary satellite from its stationary position in space?

A Pressure of solar radiations

B Gravitational changes due to Sun and Moon

C Oblateness of the Earth

D Weight of the satellite

ANS:D - Weight of the satellite

The satellite has almost zero weight in orbit it is rotating. Because it's very far away from earth and the attractive force of the earth is very small.