Hi Ok, so NTP is indeed "good enough" for the application. Each millisecond bumps you a half meter...
Grab a beater PC or Soekris board and write some code. Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Lux, Jim (337C) Sent: Friday, January 15, 2010 12:22 PM To: [email protected]; Discussion of precise time and frequencymeasurement Subject: Re: [time-nuts] Sidereal time On 1/15/10 9:13 AM, "J. Forster" <[email protected]> wrote: > Heresy: > > Why do you really NEED super accurate siderial time? If you are using it > to point a telescope, you only need it accurate enough to get the guide > stars into the field. Remember, the atmosphere refracts kinda randomly. > > -John > > = Celestial Navigation? Essentially, one determines longitude by figuring out what the difference between local solar time and sidereal time is. Now, what is super accurate? 40,000 km =24hrs, so 1 second is about 460 meters. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
