Simple Cone Search 1.1 - (new) internal WD

[Marco Molinaro]

Dear Jerome,
can you expand a bit on this?

I mean. I know epoch is critical, but having EPOCH
as a query parameter may mean:

- asking it to be a mandatory one: break back-compatibility

- letting it be optional: will this be enough for your use cases?

- require service to transform internal epoch to client required one?

While, if you simply ask to have epoch information
in the response I thought the VOTable-1.3 erratum 1
went that way, so maybe that's something to
enforce.

Cheers,
    Marco


2017-10-10 1:41 GMT+02:00 JBerthier <jerome.berthier at obspm.fr>:

> Dear all,
>
> From my point of view of CS provider (Skybot service), the key point is
> the addition of the EPOCH parameter. Without this parameter, a solar system
> CS service is unusable, as Skybot is in the next release of Aladin.
> Moreover, with the coming of big catalogs such as Gaia, this parameter will
> become mandatory to query the sky at a given epoch. One of my ongoing
> project is to seek for solar system objects in the "Carte du ciel" plates,
> thanks to the Gaia catalog which will allow one to get star positions at
> the beginning of the XXth century with an accuracy equivalent to Hipparcos
> today. Without the EPOCH parameter it will not be possible to cross-match
> stars 100 years back from the reference epoch of the catalog.
>
> cheers
> jerome
>
>
>
>
>
> On 10/09/2017 02:26 PM, Marco Molinaro wrote:
>
>> Dear all,
>> at the oncoming Interop in Santiago I will give a quick status report
>> on the Simple Cone Search revision task.
>>
>> I just fixed a couple of sentences and typos in the internal WD built
>> in July and I attach it here for you.
>>
>> Discussion points are still the same.
>> I would say that
>> 1 - ReST vs. query_param access_url
>> 2 - RESOURCE type="results" and multiple RESOURCEs
>> 3 - minor vs. major revision
>>
>> are the main ones, while
>> 4 - trying or not to use UCD1+
>>
>> can be left out until/if we tackle number 3.
>>
>> As for the "§2.3b INFO element error validation" issue, I set up an
>> Erratum that should take care of it
>> (http://wiki.ivoa.net/twiki/bin/view/IVOA/SCS-1_03-Err-1).
>>
>> The full view on Cone Search is available starting at
>> http://wiki.ivoa.net/twiki/bin/view/IVOA/ConeSearch
>>
>> Every comment and contribution is welcome and appreciated.
>> I especially ask cone search providers and apps developers
>> to join this task to update this block of the DAL landscape.
>>
>> Cheers,
>>       Marco
>>
>> PS - this is a DAL internal WD, but Apps is alerted for obvious reasons
>> PPS - detailed revisions can be followed also on volute
>>
>
> --
> --- Dr. Jerome Berthier ------------------ Phone: +33 (0)14051 2261 --
>     Institut de mecanique celest
> <https://maps.google.com/?q=itut+de+mecanique+celest&entry=gmail&source=g>e
>           Fax: +33 (0)14633 2834 --
>     77 av. Denfert Rochereau        Mailto:jerome.berthier at imcce.fr --
> --- 75014 Paris - France --------------------- http://www.imcce.fr/ --
>
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