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Re: Ballistic Theory and the Sagnac Experiment

Subject: Re: Ballistic Theory and the Sagnac Experiment
From: "George Dishman"
Date: 14 Mar 2006 08:46:04 -0800
Newsgroups: sci.astro, sci.physics.relativity, sci.physics
Hexenmeister wrote:
> "George Dishman" <george@xxxxxxxxxxxxxxxxx> wrote in message
> news:1142343231.504861.198340@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> |
> | Henri Wilson wrote:
> | > On Sat, 11 Mar 2006 21:41:28 -0000, "George Dishman"
> <george@xxxxxxxxxxxxxxxxx> wrote:

...

> | I think even with ballistic theory, the dip would
> | suggest near grazing, but that's the point, you
> | have complete freedom to determine an
> | alternative orbit from the data using your
> | program.
> |
> | > We simply cannot believe any of these readings.
> |
> | Of course we can trust the readings, they aren't
> | in question, it is the _interpretation_ of the readings
> | that you need to revise using ballistic theory. If you
> | can't, ballistic theory is falsified by observation again.
> |
> | George
>
> What observation?

http://xxx.lanl.gov/PS_cache/astro-ph/pdf/0507/0507420.pdf

> Three clocks were synchronized locally (really).
> One was sent to Mars (really) and another was sent to Saturn (really)
> The third little piggy stayed at home (really).
>
> Are these three clocks still synchronized today?

Almost, good enough for operations but not
navigation for which they use a fully relativistic
analysis.

> According to NASA - JPL they are.

... not.

>   http://saturn.jpl.nasa.gov/operations/saturn-time.cfm

 "Unless otherwise noted, all times on this website
  have been converted to U.S. Pacific Time ..."

George


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