IVOA and ADASS?

[Rob Seaman]

The replies are getting away from me...

...we're attempting to say the say thing.  You are just more  
successful at it.

I meant to that that a <WhereWhen> element from a specific packet can  
state a particular absolute epoch in multiple systems, and that these  
systems can therefore be used to renormalize the zero point of a time  
series stated with relative steps (no matter how and where the time  
series is itself expressed).

Hope that's clearer :-)

Rob
--

On Jul 3, 2008, at 7:49 AM, Arnold Rots wrote:

> Rob Seaman wrote:
>> Hi Arnold,
>>
>>
>> If WhereWhen were to express timestamps in multiple systems, e.g.,
>> topocentric/UTC and barycentric/TCB, then this might also resolve
>> Roy's issue.  The relative timings from What could (for non-
>> pathological cases) be recalibrated to match each system.
>
> WhereWhen _can_ handle multiple systems.
>
>>
>> (I suspect to hear reasons why we care about cases I'm considering
>> pathological :-)
>>
>> Rob
>>
> --------------------------------------------------------------------------
> Arnold H. Rots                                Chandra X-ray Science  
> Center
> Smithsonian Astrophysical Observatory                tel:  +1 617  
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> Cambridge, MA 02138                             arots at head.cfa.harvard.edu
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