The USNO websites aa.usno.navy.mil, ad.usno.navy.mil, aristarchus.usno.navy.mil, maia.usno.navy.mil, rorf.usno.navy.mil, toshi.usno.navy.mil, and tycho.usno.navy.mil are undergoing modernization efforts. The expected completion of the work and the estimated return of service is Fall 2020, subject to change due to potential impacts of COVID-19.
 

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Face in Bldg 1 telescope turret. The sculpture of an unidentified face placed in a dark hollowed out region under the telescope in Building 1. USNO photos by Jerry O'Neil, IT Dept
USNO Master Clock Time
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