Documents about the origin of the terms UT0, UT1 and UT2 have not been widely available. In the issues of Bulletin Horaire from the BIH in 1955 I have found a detailed synopsis of the IAU GA which decided that the measurement of time should change in that fashion, and also what I believe is the first published use of those terms.
http://www.ucolick.org/~sla/leapsecs/BH1955.html These show the tensions between astronomers, physicists, and radio engineers. They provide insight into the level of understanding of various participants and the goals they were seeking. They also hint at the incredulity of Nicolas Stoyko of the BIH as he got the answer to his question "You want it when?", because the IAU resolutions from 1955 required changes by every observatory, every radio broadcast of time signals, changes to all the computations at the BIH, and a whole new level of rapid coordination between the International Latitude Service and the BIH. -- Steve Allen <[email protected]> WGS-84 (GPS) UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m _______________________________________________ LEAPSECS mailing list [email protected] https://pairlist6.pair.net/mailman/listinfo/leapsecs
