Us Naval Master Clock

The United States Naval Observatory is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. Established in 1830 as the Depot of Charts and Instruments, it is one of the oldest scientific agencies in the United States, and remains the country's le…
The United States Naval Observatory is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. Established in 1830 as the Depot of Charts and Instruments, it is one of the oldest scientific agencies in the United States, and remains the country's leading facility for astronomical and timing data.
  • Owner: Department of Defense
  • Built: 1830 (as Depot of Charts and Instruments)
  • Operator: US Navy
  • Controlled by: Naval District Washington
  • Condition: Operational
  • In use: 1830–present
  • Current commander: Captain Mark Burns

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Data from: en.wikipedia.org