[time-nuts] GPS disciplined Mars clock

Bob Camp kb8tq at n1k.org
Sat Jul 9 20:42:27 EDT 2016


…. but what time is it on Titan ???? :)


> On Jul 9, 2016, at 6:35 PM, Mark Sims <holrum at hotmail.com> wrote:
> I just added code to Lady Heather to calculate time in Terrestrial Time (TT) and Geocentric Terrestrial Time (TCG).   The difference is basically the time dilation effect of a time referenced to the center of the earth.   Now  I'm adding Barycentric Dynamic Time (TDB) which is TT referenced to the center of the solar system... basically another relativistic correction.
> Does anybody know of an online TT/TCG/TDB clock?  I can't seem to find one to check my math.
> I've also added Mercury/Venus/Pluto time/date... which I've arbitrarily defined as GPS seconds since the J1900 astronomical epoch divided by the orbital period.  I decided not to do times for those squishy gas-bag planets.
> ---------------------------
>> Hmm,  gravitational time dilation it might complicate things ...  I
> suppose it depends on whether your Mars clock is on the surface of Mars,
> Earth or somewhere else. 		 	   		  
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