Universal Time / Naval Research Laboratory / National Physical Laboratory / /
Country
Germany / United States / Italy / United Kingdom / /
Facility
Paris Observatory / Royal Greenwich Observatory / US Naval Observatory / National Physical Laboratory / U.S. Naval Observatory / Naval Research Laboratory / /
IndustryTerm
satellite navigation systems / carrier frequency / orbital energy / time/frequency systems / telecommunications / banking / important systems / satellite positioning systems / rotational energy / reasonable solution / radio communications / /
Organization
BIH / Reference Systems Service / International Union of Radio Science / International Earth Rotation and Reference Systems Service / International Astronomical Union / National Bureau of Standards / International Telecommunication Union / International Radio Consultative Committee / /