On 2010-12-28 12:56, Richard B. Langley wrote:
I have been asked to remind list members of the presentation by Ron Beard, the chairman of ITU-R Working Party 7A, at ION GNSS 2010. The PowerPoint slides can be downloaded from here: <http://www.navcen.uscg.gov/pdf/cgsicMeetings/50/%5B16%5DITU_Status_UTC_Revision_CGSIC_50th.pdf>. Here are the conclusions, summary, and actions from the presentation: ...
Thanks. What surprises me in that summary is not what it says but what it does not mention. Two examples: [a] While the summary mentions the "questions" circulated by the Working Group, it does not state which changes really are intended -- those of the US proposal at [http://www.navcen.uscg.gov/pdf/cgsicMeetings /50/%5B16%5DITU_Status_UTC_Revision_CGSIC_50th.pdf], I assume. [b] This proposal does not only change technicalities like the maximal difference |UTC - UT|, but it changes several other things (more important things, in my opinion). For instance, it removes the immediate availability of UT from the goals of UTC dissemination. Was anybody asked about this? Do most of the experts agree? The US proposal contains provisions that only take effect in several hundreds of years. In view of the current revision cycle of ITU recommendations, this is absurd. I take this as an indication that the US proposal has not even been subject to a formal review by the ITU working group. Michael Deckers. _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com http://six.pairlist.net/mailman/listinfo/leapsecs