St Petersburg University of Wisconsin National Radio Astronomy Observatory RAL Space / Observatory Jet Propulsion Laboratory Her Majesty’s Nautical / rey Percival Scott Ransom Patrick Wallace United States Naval Observatory / Shanghai Astronomical Observatory United States Naval Observatory / Nautical Almanac Office Australia Telescope National Facility / Pulkovo Observatory / /
IndustryTerm
reference systems / pragmatic solution / /
Organization
International Astronomical Union / St Petersburg University of Wisconsin National Radio Astronomy Observatory RAL Space / /
Person
DAT DTDB / John Bangert Steven Bell Mark / Brian Luzum Zinovy Malkin Je / Catherine Hohenkerk Li Jinling Brian / TAI TT / Julian Dates / William Folkner Catherine Hohenkerk Li / Steven Bell Mark Calabretta Nicole Capitaine William / Nicole Capitaine William Folkner Catherine / / /