Time series data

Douglas Tody dtody at nrao.edu
Fri Dec 3 09:46:27 PST 2010


Thanks Arnold, I agree we should have a look again at coordinate
support in these models, especially for time series which could
potentially need precision timing.   What we have in there now is taken
directly from the current Spectrum model, which is the starting point.

 	- Doug


On Fri, 3 Dec 2010, Arnold Rots wrote:

> Regarding section 3.1.8: since the IVOA has an existing coordinate
> metadata standard, I would suggest that a proper STC element be
> inserted here. ObsDataLocation would seem appropriate.
> For a suggestion on how to do this kind of thing, see the document
> that I referenced on the Timeseries page recently.
>
>  - Arnold
>
> Douglas Tody wrote:
>> As part of the VAO time series science initiative we have developed an
>> IVOA Note exploring how one might define a time series data model
>> and access protocol based upon Spectrum and SSA (related work in
>> connection with OMC and COROT was posted here earlier).  This includes
>> use of the proposed Photometry data model to describe multiband time
>> series photometry.  Although this is still quite preliminary and
>> development continues, there is probably enough there now to begin
>> looking at specific use cases and how well this is able to support
>> data from various surveys or missions.
>>
>> This is available on the DAL time series / light curve page on the
>> IVOA Twiki:
>>
>>      http://www.ivoa.net/internal/IVOA/LightCurves/STSP.pdf
>>
>> This is not on the agenda to discuss in Nara, but it would be good
>> to have some side discussions to advance this and help identify who
>> might be interested in putting up time series data (within VAO the
>> primary sites initially are NStED and the Harvard TSC).
>>
> --------------------------------------------------------------------------
> Arnold H. Rots                                Chandra X-ray Science Center
> Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
> 60 Garden Street, MS 67                              fax:  +1 617 495 7356
> Cambridge, MA 02138                             arots at head.cfa.harvard.edu
> USA                                     http://hea-www.harvard.edu/~arots/
> --------------------------------------------------------------------------
>


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