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<p> Dear Semantics , Dear HEIG <br>
</p>
<p>in the recent IVOA note proposed by HEIG IG : <a
href="https://ivoa.net/documents/Notes/VOHE/20241112/VOHE-Note-draft_1.0.pdf"
class="moz-txt-link-freetext" moz-do-not-send="true">https://ivoa.net/documents/Notes/VOHE/20241112/VOHE-Note-draft_1.0.pdf</a></p>
<p>Two definitions of data products types are considered . <br>
</p>
<p>see section cited below: <br>
</p>
<pre><font face="Helvetica">6.1.2 Proposed definition to be discussed</font>
<font face="Helvetica">A first point to be discuss would be to converge on a proper definition of <span
class="s1">HE</span></font>
<font face="Helvetica">specific data products:</font>
<font face="Helvetica">• Propose definitions for a product-type
<b>event-list:</b> A collection of ob</font><font face="Helvetica">served events, such as incoming <span
class="s1">HE </span>particles, where an event is gen</font><font
face="Helvetica">erally
characterised by a spatial position, a time and a spectral value</font><font
face="Helvetica"> (e.g. an energy, a channel, a pulse height).</font>
<font face="Helvetica">• Proposedefinitionsforaproduct-type
<b>event-bundle:</b> An event-bundle</font><font face="Helvetica"> dataset is a complex object containing an event-list and multiple files or</font>
<font face="Helvetica">other substructures that are products necessary to analyse the event-</font><font
face="Helvetica">list.
Data in an event-bundle may thus be used to produce higher level</font><font
face="Helvetica"> data products such as images or spectra.</font>
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<p>Concerning the event-list product type currently in <a
href="https://www.ivoa.net/rdf/product-type/2024-05-19/product-type.html"
class="moz-txt-link-freetext" moz-do-not-send="true">https://www.ivoa.net/rdf/product-type/2024-05-19/product-type.html</a><br>
</p>
<p>I am not sure we need to change the definition . <br>
</p>
<p>If <i>event-bundle</i> exists and designate the data + IRFs ,
then this clarifies the <i>event-list </i>as the data only. </p>
<p>I suggest we iterate on this on the heig list and consider how
the data product can be described in more details . <br>
</p>
<p>Another topic is the <i>access_format </i>: currently the list
of valid MIME-types for Obscore are in the spec , but we can
extend it <br>
</p>
<p>and include OGIP , VODF and VHE as well. <br>
</p>
<p>Thanks , Mireille<br>
</p>
<p></p>
<pre class="moz-signature" cols="72">--
--
Mireille Louys, MCF (Assistant Professor)
Centre de données Astronomiques (CDS) Equipe Images, ICube
Observatoire de Strasbourg Telecom Physique Strasbourg
11, rue de l' Université 300, Bd Sebastien Brandt CS 10413
F-67000 Strasbourg F-67412 Illkirch Cedex</pre>
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