United States Naval Observatory

GPTKB entity
AI-created image of United States Naval Observatory
AI-created image

Statements (52)
Predicate Object
gptkbp:instanceOf astronomer
gptkbp:abbreviation gptkb:USNO
gptkbp:address gptkb:3450_Massachusetts_Ave_NW,_Washington,_DC_20392,_USA
gptkbp:codename IERS code 404
Observatory code 007
gptkbp:contributedTo gptkb:Coordinated_Universal_Time_(UTC)
gptkb:Global_Positioning_System_(GPS)
gptkb:International_Atomic_Time_(TAI)
gptkb:International_Earth_Rotation_and_Reference_Systems_Service_(IERS)
gptkbp:coordinates 38.9215°N 77.0669°W
gptkbp:country gptkb:United_States
gptkbp:director gptkb:Dr._Frank_J._Cepollina
gptkbp:discoveredBy gptkb:moons_of_Mars_(Phobos_and_Deimos)
gptkbp:founded 1830
gptkbp:hasArchive historic astronomical data
lunar and planetary observations
star catalogs
timekeeping records
gptkbp:hasFacility gptkb:Astronomical_Applications_Department
gptkb:Atomic_Clock_Laboratory
gptkb:Earth_Orientation_Department
gptkb:Flagstaff_Station
gptkb:Time_Service_Department
Optical Interferometer
gptkbp:hasTelescope 12-inch refractor
26-inch refractor
6-inch transit circle
https://www.w3.org/2000/01/rdf-schema#label United States Naval Observatory
gptkbp:location gptkb:Washington,_D.C.
gptkbp:motto Serving the Nation since 1830
gptkbp:notableBuilding gptkb:Vice_President's_residence
gptkbp:notablePerson gptkb:Asaph_Hall
gptkbp:operatedBy gptkb:United_States_Navy
gptkbp:parentOrganization gptkb:United_States_Department_of_the_Navy
gptkbp:partOf gptkb:United_States_Department_of_Defense
gptkbp:primaryUse astronomical observations
navigation support
timekeeping
gptkbp:provides gptkb:Master_Clock_for_the_United_States
precise time to military and civilian users
gptkbp:publishedIn gptkb:The_Air_Almanac
gptkb:The_American_Ephemeris_and_Nautical_Almanac
gptkb:The_Astronomical_Almanac
gptkb:The_Nautical_Almanac
gptkbp:staffedBy gptkb:engineer
gptkb:military
astronomer
civilian scientists
gptkbp:website https://www.usno.navy.mil/
gptkbp:bfsParent gptkb:Embassy_Row
gptkb:Number_One_Observatory_Circle
gptkbp:bfsLayer 4