On 2023-11-26 06:59, Steve Allen wrote:
This week began the meeting of ITU-R WRC 23.
After closure of work related to resolution 655 of WRC 2015 at the World Radio Conference 2023 in Dubai, the BIPM has added the web page [https://www.bipm.org/en/-/2023-12-12-wrc-dubai] One particular technical aspect is mentioned on this page: some lead time is required to adapt the (few) radio time signals that disseminate the approximation DUT1 of UT1 - UTC to the larger range of |UT1 - UTC| that will be allowed after 2035. This is worded quite implicitly, so that one cannot be sure ∙ whether there will still be an official approximation of of UT1 - UTC after 2035, similar to the one currently produced by the IERS with Bulletin D; ∙ if, yes, what the resolution and the range of that approximation would be. The CIPM will certainly try to avoid to introduce an official approximation of UT1 - UTC with a resolution of whole seconds and whose values change only at the end of a UTC month. Michael Deckers. _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com https://pairlist6.pair.net/mailman/listinfo/leapsecs
