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TAG: Deep Space Atomic Clock

Drawing of the DSAC mercury-ion trap showing the traps and the titanium vacuum tube that confine the ions. The quadrupole trap is where the hyper-fine transition is optically measured and the multipole trap is where the ions are “interrogated” by a microwave signal via a waveguide from the quartz oscillator. (Image: NASA.)

Mercury-ion atomic clock holds promise for greater GPS accuracy

June 10, 2019

Image: NASA

Using GPS, NASA tests atomic clock for deep space navigation

February 9, 2018