High Quality Content by WIKIPEDIA articles! The United States Naval Observatory Flagstaff Station (or NOFS), is an astronomical observatory operated as a Navy Echelon V command and the national dark-sky observing Facility subordinate to the United States Naval Observatory (USNO). USNO (an Echelon IV command) and NOFS are commands within the CNMOC claimancy, the latter which serves the U.S. Navy on meteorological and oceanographic matters in addition to overseeing astronomical ones. The Flagstaff Station [2] is a command which was established at a site five miles west of Flagstaff, Arizona in 1955, and has positions for 35 scientists (astronomers and astrophysicists), optical and mechanical engineers, and support staff. NOFS also operates the Navy Prototype Optical Interferometer in collaboration with Lowell Observatory and the Naval Research Laboratory at Anderson Mesa, 15 miles south east of Flagstaff.

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