[LEAPSECS] JD & MJD, UT1 & UTC

[Steve Allen]

On Mon 2017-01-02T12:55:23 -0800, Tom Van Baak hath writ:
> But since some of you are real picky about formal definitions, my
> question is what to do about MJD -- is it UT1-based or it is
> UTC-based?  And if UTC-based, what's the right thing to do when the
> day has a +/- leap second?

IAU hashed this out with multiple meetings in the 1990s finally coming
up with 1997 resolution B1
http://www.iau.org/static/resolutions/IAU1997_French.pdf

It gives a table of dates and numbers, and it notes that the intended
time scale for the counting of days should be explicitly specified.

--
Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
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