[LEAPSECS] Never mind DUT1, what happened to dX ?

[Steve Allen]

On Mon 2022-03-07T06:33:31+0000 Poul-Henning Kamp hath writ:
> I looked at the Bulletin A plots this morning to see how DUT1 is
> developing, but then I noticed the 'dX' term plot:
>
>       https://datacenter.iers.org/singlePlot.php?plotname=BulletinA_All-DX&id=6
>
> What happened in late 2019 ?

2019 October is when USNO had to take their machines offline due to
new security requirements.

Those artifacts do not show at the ObsPM site
https://hpiers.obspm.fr/eop-pc/index.php?index=analysis&lang=en

--
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