On Fri, 2021-01-08 at 22:51 +, Michael Deckers wrote:
>
> On 2021-01-08 19:57, John Sauter via LEAPSECS wrote:
>
> > I attach a plot of historical values of DUT1 based on the old
> > issues of
> > Bulletin A kept on the IERS' web site.
>
>
>
> I think the graph of DUT1 is not quite cor
On Fri, 2021-01-08 at 22:51 +, Michael Deckers wrote:
>
> On 2021-01-08 19:57, John Sauter via LEAPSECS wrote:
>
> > I attach a plot of historical values of DUT1 based on the old
> > issues of
> > Bulletin A kept on the IERS' web site.
>
>
>
> I think the graph of DUT1 is not quite cor
On 2021-01-08 19:57, John Sauter via LEAPSECS wrote:
I attach a plot of historical values of DUT1 based on the old issues of
Bulletin A kept on the IERS' web site.
I think the graph of DUT1 is not quite correct, for instance:
On 2009-01-01, there was a switch of DUT1 from -0.6 s to +
The IERS specifies in Bulletin A the value for DUT1, which is an
approximation of UT1-UTC that is transmitted with time signals. The
current value is -0.2, which has not changed since May of 2019, an
unusually long time.
If the IERS prediction of future values of UT1-UTC turns out to be
correct,