In message <[EMAIL PROTECTED]>, Markus Kuhn writes: >All I wanted to say is that for a good choice of epoch, it would be nice >if we agreed on it not only to within a few seconds (the leap-second >problem), but also to within a few milli- or microseconds (the SI/TAI >second problem). The latter seems much easier to do for 2000 than for >1972 or even 1958. In applications such as observing planetary motion >over many years, the difference matters.
Good point. Presumably, the epoch will be defined relative to TAI or UTC to get maximum precision, so the limiting factor will probably be measuring (or having had measured) UT1 with maximum precision at the epoch. Poul-Henning -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
