Atomic Clock
An atomic clock is a type of clock that uses the vibrations of atoms to measure time. In space and astronautical engineering, atomic clocks are used for precise timekeeping and navigation. The most common type of atomic clock used in space is the hydrogen maser, which uses the vibrations of hydrogen atoms to keep time. Atomic clocks are essential for space missions that require precise timing, such as satellite navigation and deep space exploration. They are also used to synchronize ground-based telescopes and other scientific instruments. Atomic clocks are highly accurate, with some models able to keep time to within a few billionths of a second per day.
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