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Atomic clock for indigenous navigation satellites
May 16 , 2018
2256 days
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- The Indian Space Research Organisation (ISRO) has developed an atomic clock that will be used in navigation satellites to measure precise location data.
- Till now, the space agency has been importing the atomic clocks for its navigation satellites from the European aerospace manufacturer Astrium.
- The atomic clock has been developed by Ahmedabad-based Space Applications Centre (SAC) and is currently undergoing a series of qualification tests.
- The time difference between the atomic clocks of different satellites positioned at different orbits is used to measure the accurate positioning of a navigation receiver or an object on the Earth.
Note
- A navigation satellite is fixed with three atomic clocks. Besides atomic clocks, a navigation satellite also has crystal clocks but they are not as accurate as atomic clocks.
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