Atomic Clock for Goldstone Equipment

This primary atomic frequency standard, a hydrogen maser, served as the stable frequency source for the master clock. Operating in an environmentally controlled vault at Goldstone, it continues to serve as a backup frequency source.

Caption:
This primary atomic frequency standard, a hydrogen maser, served as the stable frequency source for the master clock.
Type: Photograph
Image Date: 2012
Image Taken: Goldstone, California, United States
Credit: National Air and Space Museum, Smithsonian Institution
Origin: Jet Propulsion Laboratory, National Aeronautics and Space Administration
Creator: Ashley Hornish
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This primary atomic frequency standard, a hydrogen maser, served as the stable frequency source for the master clock.