[ntp:questions] frequency adjusting only

Evandro Menezes evandro at mailinator.com
Wed May 14 16:09:12 UTC 2008


On May 4, 2:37 pm, "David L. Mills" <mi... at udel.edu> wrote:
>
> On symmetry, etc. There are both gravitational and velocity corrections
> relative to both Earth and solar system barycentric time amounting to
> some 15 ms, but current space missions don't worry much about that. The
> mission times are relative to a clock onboard the spacecraft; nothing
> else matters. Our Earth-Mars simulations didn't worry about these
> effects either. I suspect disciplining an orbiter/rover clock to these
> corrections will be dominated by the frequency noise of affordable
> oscillators. Maybe not.

Just curious, but did you have to deal with relativistic effects of
relative time dilation as the craft speed increased?

TIA




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