I'm not in a position to put up a "pick your own length of second and
replot" cgi-bin page right this moment, but if there's interest I can
post my file of delta T values gleaned from tables in the Stephenson
and Morrison publications -- that goes to 1962.  For after that my
plots just use C04 from Daniel Gambis and friends at the obspm.fr
bureau of IERS.

If I have the raw data, I can redo the graphs...

Warner

I grabbed the MJD and UT1-UTC fields from here:
http://hpiers.obspm.fr/eoppc/eop/eopc04/eopc04_IAU2000.62-now

I picked lines from MJD  41317 (1972) through 55927 (2012);
then unwrapped the leap seconds to get a data set that goes from
about 0 to -25 seconds. A copy of the resulting file is at:
   www.leapsecond.com/tmp/mjd-dt.dat

/tvb

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