On Tue, 11 Mar 2003 09:44:00 -0800, Ken S. Tucker wrote:

"Titan Point" wrote in message ...

TP, Pardon the top post, but I agree with everything you said below.
But as you say Phobos and Deimos are very small. I'm wondering
if Earth's moon might be a better toy. It has a fairly eccentic orbit
that may be useful, and Earth possesses geostationary sats as well as
GPS sats with better understood geodesy. It might be possible to
disconcern a slight phase shift due to the limited speed of gravity
from the much larger moon.
I'd recommend crunching some numbers in the Earth-Moon system
and see how detectable this effect might be.

Interesting, hope to hear something.
Ken S. Tucker

The problem with that is that the moon moves fairly slowly about the earth
and there are hundreds of artificial satellites which could produce a
measureable effect which would mask the effect we're looking for.

That's the reason I chose Mars: two natural satellites moving very quickly
in orbit and two artificial satellites. Not ideal, but at least in principle a
relatively simple system with not too many other variables.

The thing is that a wobble in the Odyssey's telemetry due to Phobos and
Deimos should be in time synchronicity with the (light) position of those
bodies with respect to the craft. Ergo, it should be possible (since the
gravitational field is changing rapidly) to say whether the speed of
gravity and the speed of light are the same.

Anybody else? Really I'd like to hear opinions on whether this is
feasible or not.

On Mon, 16 Feb 2004 20:26:01 +0100, Titan Point wrote:

On Tue, 11 Mar 2003 09:44:00 -0800, Ken S. Tucker wrote:

Please ignore. News reader behaving badly.