[Heig] vocabulary update: proposal for dataproduct_type update for high energy data : event-list definition / exemples needed

[Mireille Louys]

Dear Semantics , Dear HEIG

in the recent IVOA note proposed by HEIG IG : 
https://ivoa.net/documents/Notes/VOHE/20241112/VOHE-Note-draft_1.0.pdf

Two definitions of data products types are considered .

see section cited below:

6.1.2 Proposed definition to be discussed

A first point to be discuss would be to converge on a proper definition 
of HE

specific data products:

• Propose definitions for a product-type *event-list:* A collection of 
observed events, such as incoming HE particles, where an event is 
generally characterised by a spatial position, a time and a spectral 
value(e.g. an energy, a channel, a pulse height).

• Proposedefinitionsforaproduct-type *event-bundle:* An 
event-bundledataset is a complex object containing an event-list and 
multiple files or
other substructures that are products necessary to analyse the 
event-list. Data in an event-bundle may thus be used to produce higher 
leveldata products such as images or spectra.

Concerning the event-list product type currently in 
https://www.ivoa.net/rdf/product-type/2024-05-19/product-type.html

I am not sure we need to change the definition .

If /event-bundle/ exists and designate the data + IRFs , then this 
clarifies the /event-list /as the data only.

I suggest we iterate on this on the heig list and consider how the data 
product can be described in more details .

Another topic is the /access_format /: currently the list of valid 
MIME-types for Obscore are in the spec , but we can extend it

and include OGIP , VODF and VHE as well.

Thanks , Mireille

-- 
--
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
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