Hi Anders:
That's something I've thought about for decades using an optical system. A few years ago I looked at it again and
found that astronomical "seeing" limits the accuracy. So the accuracy achieved by a spaceborne "Stellar compass" will
be much better than a ground based observation. A radio based observation might work since the atmosphere would not be
a factor.
http://www.prc68.com/I/StellarTime.shtml
--
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
The lesser of evils is still evil.
-------- Original Message --------
out of curiosity, are there any amateur/semi-pro experiments that can
measure the length of the solar or sidereal day to sub-millisecond
resolution?
To reproduce data like this:
https://upload.wikimedia.org/wikipedia/commons/5/5b/Deviation_of_day_length_from_SI_day.svg
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??
Anders
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