Michael Deckers via LEAPSECS wrote: > The symbol TAI(k) is defined in > RECOMMENDATION ITU-R TF.536-2: Time-scale notations > of 2003 with the text: > > TAI(k): Time-scale realized by the institute "k" and defined > by the relation TAI(k) = UTC(k) + DTAI,
Oh cool, same as my definition. I didn't know about this Recommendation. I thought this notation was natural and intuitive, as a way of referring to this concept, and it's nice to have that supported by an independent coinage. Also nice to now be able to refer to a definition with higher status than "stuff wot I just thought up". > The contributions by the various metrology institutes to TAI > are independent from the UTC(k) and are denoted by TA(k) in > Circular T by the BIPM. There aren't enough TA(k) to account for all the contributions to TAI. The TA(k) are a small group, very rarely adding new ones, and notably lacking some of the major contributors to TAI. There's no TA(NPL), for example. -zefram _______________________________________________ LEAPSECS mailing list [email protected] https://pairlist6.pair.net/mailman/listinfo/leapsecs
