On Fri, Jun 15, 2012 at 9:49 PM, Mark Sims <hol...@hotmail.com> wrote:
> > Lady Heather can do sidereal time. Specify either the LMST, LAST, GMST > or GAST time zone (for Local/Greenwich Mean/Apparent Sidereal Time). I think the question was how to get Sidereal time to the microsecond level. A computer display screen only gets refreshed roughly 60 to 100 times per second so a screen can be tens of milliseconds off. How is this done professionally. Basically they don't. What you do is record a UTC time code on a track parallel to the data. Or now that everything is digital, the time code is sampled and multiplexed with the data. Later the display software can convert the time to whatever format is desired. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
