On 2011-02-04 00:32, Stephen Colebourne proposed the following description:
- definition: TAI-2008-second - the same as SI-second for the purposes of this discussion
The TAI time scale uses the SI second alright, but it is the value of the SI second as realized on the rotating geoid. You get a different time scale if you use the SI second at other points in spacetime, such as the geocenter. And if you extend TAI from the geoid to other places close to the surface of the Earth, using a coordinate system corotating with the Earth, you will find that the "TAI second" differs from the SI second as realized at these places. I fully agree with you that this is irrelevant for leap seconds -- but for the definition of TAI it is relevant. Michael Deckers. _______________________________________________ LEAPSECS mailing list [email protected] http://six.pairlist.net/mailman/listinfo/leapsecs
