[Fwd: VOTimeSeries]

[Arnold Rots]

Sorry, I'm on vacation - back 18 July.

Roy Williams wrote:
> 
> Thank you Enrique for this, clearly there has been a lot of work in your 
> time-series archive. I am hoping that other time-series archives 
> (Ptotopappas at CfA, Bloom at Berkeley, etc) will be able to work with 
> you to achieve interoperability.
> 
> I have built another way to see what is going on, and I offer that to 
> the DM grouyp as a way to stimulate discussion. It is a screenshot where 
> I have opened the VOTable time series in Topcat, so that we can see the 
> data model more clearly.
> 
> The top section is the data dictionary: each point has time and exposure 
> time, each flux point has value nad upeer and lower error limits
> 
> The next section is the actual data, three measurements of 30 seconds 
> each, for a 7th magnitude star.
> 
> The last section is parameters, showing that time is in MJD, location of 
> the traget, and curation information.
> 
> QUESTION: What semantic information is MISSING from this time series?
> QUESTION: Is there TOO MUCH metadata here, is it too COMPLEX?
> QUESTION: What other syntax could be used besides VOTable?
> 
> Roy

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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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