[LEAPSECS] a modest proposal

[Tony Finch]

On Thu, 27 Mar 2008, Steve Allen wrote:

>

> Upon further consideration, I'm not sure I agree.  For the purposes of

> satellite navigation there is not need for the terrestrial reference

> frame to be tightly tied to the celestial reference frame.  Achieving

> accuracy of 1 meter certainly doesn't care about rapid changes of

> earth orientation parameters with respect to the quasars, only with

> respect to the satellites.  So it could be argued that the need for

> VLBI campaigns would become a scientific extravagance no longer

> relevant to civil life.


Is there enough coupling between Earth rotation and the orbiting
satellites to make a difference between their reference frame and one
derived from quasars?

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
SHANNON: WESTERLY BACKING SOUTHERLY 6 TO GALE 8, PERHAPS SEVERE GALE 9 LATER.
HIGH. SQUALLY SHOWERS. MODERATE OR POOR.