Hi

Pulsars are an "interesting clock". That by no means equates to them being a 
better clock than an ion standard or possibly a neutron standard. If you look 
at ADEV numbers, there's pretty much no way a pulsar will be anywhere near the 
level a good atomic clock can deliver over useful time spans.

For long time spans you get into a "what indeed is time?" issue. Atomic clocks 
have been more stable than the earth's rotation for quite a while. We correct 
things to allow for the earth as a result. If you are going to do that for 
atomic clocks - the same issues get into a pulsar source "as delivered" on 
earth's surface. Weather you pick it up in space and relay it or not, you still 
have the math issues of getting it to the surface. 

Bob

On Mar 28, 2012, at 2:29 PM, Tom Knox wrote:

> 
> If pulsars are natures best clocks, I wonder how practical it would be to use 
> satellites to receive and rebroadcast a highly accurate timing signal based 
> on their signals?
> 
> Thomas Knox
> 
> 
>                                         
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