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<p>Dear all,</p>
<p>Thanks Ada for that note. <br>
<br>
after discussion with Laurent Michel and Ada I have two points to
address.</p>
<p>1 ) I think it's better to mark the VOTABLE as being a timeseries
right at the beginning of the document instead of putting the
utype="timeseries" information at the beginning of the TABLE. <br>
</p>
<p>Utypes are sometimes used in VO specifications to give a role (in
the IVOA) to the feature even if there is no datamodel behind. In
the attached example I use a syntax for the utype proposed by
Laurent in this private discussion.</p>
<p>2 ) In the current note the multiband case is serialized as 3
tables written in sequence. Each table has its own PhotCal GROUP
attached. In the attached example (discussed with Ada) we propose
an alternative: a single table with a "FilterIndentifier" column.
3 different Photcal GROUPS are attached to this tabel and the
appropriate Filteridentifier PARAM in each of these group is
referring to the column with the same name in the TABLE. The
assumption is that photometric metadata given in the GROUP are
valid for all roaws where values of FilterIndentifier in the row
and in the GROUP PARAM match.</p>
<p>Let's see what solution you prefer.</p>
<p>Cheers</p>
<p>François <br>
</p>
<div class="moz-cite-prefix">Le 07/04/2020 à 11:36, ada nebot a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:40A202B7-384A-429C-B5DB-5C06992A3104@astro.unistra.fr">
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<div class="">Dear IVOA members, </div>
<div class=""><br class="">
</div>
<div class="">We have drafted an IVOA Note on </div>
<div class=""><b class="">Time series: Annotation of light curves
in VOTable</b></div>
<div class=""><br class="">
</div>
<div class="">You can find this document under: </div>
<div class=""><a
href="http://www.ivoa.net/documents/Notes/LightCurveTimeSeries"
class="" moz-do-not-send="true">http://www.ivoa.net/documents/Notes/LightCurveTimeSeries</a></div>
<div class=""><br class="">
</div>
<div class="">This document describes a proposal to annotate in a
VOTable time series data. It is limited to the most common type
of time series in astronomy: light curves, but it can be
extended to other type of time series data easily (such as e. g.
radial velocities curves). The annotation reuses elements
of existing data models when possible and defines a set of new
elements. </div>
<div class=""><span class=""></span><span class=""></span><span
class=""> </span><span class=""><br class="">
</span>
<div class="">Looking forward to your comments and suggestions!
Also, don’t hesitate to distribute it around and ask us if you
would like to be among the list of authors. We would be happy
to add anyone with an interest on the proposal. </div>
<div class=""> </div>
<div class="">Best,</div>
<div class="">Ada for the TDIG </div>
<div class=""><br class="">
</div>
</div>
<div class="">
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-webkit-text-stroke-width: 0px; text-decoration:
none;">--<br class="">
Astronome Adjointe<br class="">
CDS, Observatoire Astronomique de Strasbourg (ObAS)<br
class="">
UMR 7550 Université de Strasbourg <br class="">
11, rue de l'Université, F-67000 Strasbourg<br
class="">
+33 (0) 3 68 85 24 20</div>
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