Re: [LEAPSECS] decision tree for civil time

From: Rob Seaman <seaman_at_NOAO.EDU>
Date: Sun, 14 Aug 2005 00:09:38 -0700

On Aug 13, 2005, at 2:09 PM, Warner Losh wrote:

> There are some fundamental differences here. Looking at leap years,
> the formula that we have could produce a table. The table could be
> tweaked at various points to optimize things over the short term to be
> better.

The table/formula paradigm (must be some better terminology,
"discrete" versus "closed form" or some such) can likely appear in
several different ways. I was thinking of "corrections" more in the
sense of preserving the historical record. For UTC, for instance,
these would be the various Bulletins with their lists of previous
leap seconds and the evolution of DUT1. Suspect we'll continue to
tweak these concepts through several iterations.

Rob Seaman
National Optical Astronomy Observatory
Received on Sun Aug 14 2005 - 00:09:42 PDT