[LEAPSECS] Solar time: From mean solar days, to mean solar years

Steve Allen sla at ucolick.org
Wed Aug 20 23:47:30 EDT 2014


On Wed 2014-08-20T23:28:20 -0400, Brooks Harris hath writ:
> The day, as has always been the traditional goal. That's why leap
> years and UTC with Leap Seconds in the first place, right?

Yes.  The IAU made that plain 50 years ago when they published
http://www.ucolick.org/~sla/leapsecs/note1964en.html
because as seen in point 5, they insisted that radio time signals give
UT.

What's stunning to me is that this year the IAU working group on the
redefinition of UTC quoted that in a response to the ITU-R request in
WRC-15 Agenda Item 1.14, but the document from the working group was
never forwarded to the ITU-R.  So the IAU has refused to acknowledge
its role in bringing about the current situation.

--
Steve Allen                 <sla at ucolick.org>                WGS-84 (GPS)
UCO/Lick Observatory--ISB   Natural Sciences II, Room 165    Lat  +36.99855
1156 High Street            Voice: +1 831 459 3046           Lng -122.06015
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