Science and Technology · Space and Satellite Navigation
With reference to satellite-based navigation systems, consider the following statements: I. Indian Regional Navigation Satellite System (NavIC) is designed to provide independent positioning and navigation services over India and surrounding regions. II. Geostationary satellites remain fixed relative to a point on the Earth's equator due to their orbital period matching Earth's rotation. III. Atomic clocks used in navigation satellites are essential for accurate position determination because satellite navigation relies on precise time measurement. IV. All Global Navigation Satellite Systems (GNSS) exclusively use satellites placed in low Earth orbit to reduce signal transmission delay. How many of the statements given above are correct?
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Only three
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