[LEAPSECS] Equation of time

[Tom Van Baak]

Someone asked me about accurate calculations of the equation of time. Since it relates to keeping time, leap seconds, and days perhaps someone on the list can shed light on it.

Most graphs of EoT appear accurate to the minute. Is it possible to predict the equation of time to the millisecond level? How complicated are the equations. What sorts of non-obvious corrections does one need to apply at the seconds level or milliseconds level?

Are the simple formulae given in http://en.wikipedia.org/wiki/Equation_of_time valid at this level, or is there serious literature that goes into far more detail.

Thanks,
/tvb
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