SSAP clients for theoretical spectra
Carlos Rodrigo Blanco
crb at laeff.inta.es
Thu Oct 11 03:22:31 PDT 2007
We have the same problem that you have. Here at LAEFF we
have developed some services for theoretical spectra using
TSAP (included as an appendix as a use case of SSAP).
Some of them are available since some years ago, some
others only months ago. You can take a look at some of them
through VOSpec, through our web interface
(http://laeff.inta.es/svo/theory/db2vo/html), via the TSAP
interface that Miguel Cerviño talked about
directly asking for the format=metadata url.
The problems are:
- Only VOSpec has an interface to access those models.
- At a registry level the only way to register these
services is a SSAP services. This mean that applications
will query the services by position/object name and the
services will never ask annything useful. There's no way to
register them as TSAP, meaning that, even though the service
conformes with SSAP specification, it does not answers
to position queries and it needs a previous format=metadata
query for finding the query parameters.
I thing that this lack of a proper way to register
theoretical spectra services is very important. It makes
these services almost invisible to the applications (as they
wouldn't know how to find which ones are available). And
maybe that is the reason why most application developers
haven't felt the need to implement a way to access
theoretical spectra services.
I'm really interested in any discusion about this subject.
> To all architects and developers of SSAP clients:
> within the GAVO (German VO) project we implemented the
> simple spectra access protocol for synthetic spectra.
> When I started testing our
> service I noticed that most of the client tools do not
> support search for theoretical spectra but only query by
> position and time. So my question to the applications
> working group: Are there any plans or on-going discussions
> about including theoretical spectra?
> Or any client software I do not know yet? (The only one I
> know dealing with parameters for theoretical spectra is
> Otherwise I suggest to take this aspect into account for
> further development.
> The base url of our SSAP service is:
> To get an impression what parameters theoretical spectra
> would typically use, you can look at our browser based
> interface (or contact me directly).
> (This service is supposed to comply with SSAP version
> 1.02. If you find anything non-conforming, please let me
> know. )
> Best regards,
> Ulrike Stampa, GAVO
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