SELEX Galileo will provide its passive hydrogen MASER (PHM) atomic clocks for the Galileo FOC navigation satellites to Surrey Satellite Technology (SSTL) under a €30m ($39.7m) contract.
The PHM clocks will be installed on each of the 14 satellites in the Galileo system.
The clock is the most stable ever produced for space applications with a frequency stability better than 10-14 day.
Eight PHMs are already being integrated into the payloads of the first four satellites of the Galileo IOV navigation system, each satellite being equipped with two PHMs as a master clock.
The frequency stability of the PHMs will provide the precision required by the Galileo system for over eight hours without any correction or upload from the ground.
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