Good catch! This should be entertaining... -- On Jan 5, 2011, at 12:42 PM, Poul-Henning Kamp wrote:
> In message <[email protected]>, > central_bure > [email protected] writes: > >> ************************************************************************ >> IERS Message No. 180 January 05, 2011 >> ************************************************************************ >> >> Revision of IERS Earth Rotation Series effective 1 February 2011 >> >> [...] >> >> 2) Changes in UT1-TAI and celestial pole offsets are respectively on >> the order of 2 s, 1, and 17 as which are at the level of the WRMS >> between IVS individual solutions. > > TAI is supposed to be a "uniform atomic timescale", so I cannot > imagine they would have stuck/removed two seconds from it because > the figured out better params for Earth orientation. > > Unless to reinforce that people should not use it for anything ? > > Jumping UT1 by two seconds, would send DUT >1s, possibly >2s depending > on the signs. > > The transition date is 2011-02-01. > > I believe we should have seen Bul-C for 2011-06-31 already (six months > notice, remeber ?) but they usually run two weeks late. > > So are we set for 4 months of DUT>1s or 4 months DUT>2s + 6 months > DUT>1s now ? > > Can somebody explain this ? > > Rationally ? > > Poul-Henning > > Not updated: > http://hpiers.obspm.fr/eop-pc/earthor/utc/TAI-UTC_tab.html > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > [email protected] | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > _______________________________________________ > LEAPSECS mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/leapsecs _______________________________________________ LEAPSECS mailing list [email protected] http://six.pairlist.net/mailman/listinfo/leapsecs
