How to consume TAP and SIAP for lightcurve survey ?

[Jesus Salgado]

Dear Petr, all,

First, just to confirm some of the points stated by Doug. It has been
proposed to reuse and/or extend some elements from of SDM for ImageDM,
adding, of course, specific Image metadata (the name "image" was under
discussion because it could include more complex structures, e.g. cubes
but, finally, "image" was understood in a more general sense). Secondly,
we have the action to have as sooner as possible a standard to describe
Time Series within IVOA (by creating a new standard or, most probably,
by adopting/modifying an existing one)

There is also an architectural effort to decouple DMs of data access
protocols. Once we create/adopt a Time Series DM we could consume it by
a protocol/protocols to be defined or recommended by the DAL WG. I do
not remember any mention to SIAPv2. The general idea of support for
operations on the data present in SIAPv2 could be interesting and reuse
for Time Series but most of the operations needed for time series are
not foreseen in SIAPv2 because of obvious reasons.

In fact, I have heard about proposals of publishing time series using
SSAP (assuming that SDM could also describe time series in some way),
TAP/ObsCore for catalogs with time series (not clear the format of the
files) or to propose the creation of a specific protocol for Time Series
but, in any case, it looks that the DM design/adoption will go first. 

Cheers,
Jesus




On Thu, 2013-01-17 at 11:18 -0700, Douglas Tody wrote:
> On Thu, 17 Jan 2013, Petr Skoda wrote:
> >> image.  Likewise SDM will include the essentials to describe photometric
> >> bands in time series.  SDM is designed to support time series as well as
> >> spectra and SEDs so would be logical to use as the core model.
> >
> > OK - so as I understand - there will be only SDM2.0 as a model for describing 
> > all the photometry and time series and spectra and the SIAP2 will be a 
> > protocol for accessing all this ?
> 
> No, SDM (and Obs etc. which it encapsulates) would just be used as a
> core model in this case.  Image access / SIA2 are to be based upon an
> Image DM which extends this and adds more elements (possibly modifies
> bits too if necessary for an Image, although hopefully that can be
> minimized).  Image has to address some major new things like mapping
> image axes to WCS coords.
> 
> >> little more work we should have enough defined to do some prototyping to
> >> put up time series data from a few real collections,
> >
> > It would be nice to see lightcurve surveys like Catalina, KEPLER, COROT 
> > ,HIPPARCHOS, OGLE (and Gaia)  consumable in the same way as local 
> > measurements by the same powerful client like is presented in VAO demo using 
> > web service.
> 
> That is the idea.  A lot will be learned putting up a few real
> collections.
> 
>  	- Doug
> 
> 
> > Anyway thanks for explanation
> >
> > Petr
> >
> > *************************************************************************
> > *  Petr Skoda                         Phone : +420-323-649201, ext. 361 *
> > *  Stellar Department                         +420-323-620361           *
> > *  Astronomical Institute AS CR       Fax   : +420-323-620250           *
> > *  251 65 Ondrejov                    e-mail: skoda at sunstel.asu.cas.cz  *
> > *  Czech Republic                                                       *
> > *************************************************************************
> >
-- 
Jesus J. SALGADO                       Jesus.Salgado at sciops.esa.int

European Space Agency (ESA)
European Space Astronomy Centre (ESAC)
Science Operations Department (SRE-O)
Science Archives and Computer Support Engineering Unit (SRE-OE)

European Space Agency/European Space Astronomy Centre (ESAC)
P.O. Box 78
28691 Villanueva de la Canada                 Tel: +34 91 813 12 71
Madrid - SPAIN                                Fax: +34 91 813 13 08
-------------------------------------------------------------------


This message and any attachments are intended for the use of the addressee or addressees only. The unauthorised disclosure, use, dissemination or copying (either in whole or in part) of its content is not permitted. If you received this message in error, please notify the sender and delete it from your system. Emails can be altered and their integrity cannot be guaranteed by the sender.

Please consider the environment before printing this email.