[time-nuts] Measuring sidereal/solar time? Re: A Leap Second is coming

Anders Wallin anders.e.e.wallin at gmail.com
Fri Dec 30 03:59:03 EST 2016

out of curiosity, are there any amateur/semi-pro experiments that can
measure the length of the solar or sidereal day to sub-millisecond
To reproduce data like this:

Something in the sky that goes "ping" every day - detected with a pointing
accuracy of < 1ms/24h or <0.01 arc-seconds (!?). Or perhaps two
satellite-dishes pointed at the sun and noise-correlation/interferometry??


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