[LEAPSECS] UT1 offset

[Steve Allen]

On Mon 2023-12-25T00:25:07-0800 Hal Murray hath writ:
> Who uses DUT1 via radio?  Who will be using it 50 years from now?
>
> Is it needed for anything other than navigation and astronomy?

UT1 is not needed for navigation if the almanacs switch their
tabulations to use the time scale that is available.
This was true 70 years ago.

Navigators hate changes to the almanacs.

70 years ago the astronomers who made the almanacs preferred to
maintain a Ptolemaic world view in part to avoid presenting a change
to the navigators, in part to avoid having to prove that a different
scheme of tabulation would be reliably correct and do all the new
calculations still largely by hand, but most of all because their
other job was to provide legal time, and legal time was based on mean
solar time.

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