[Heig] Start up of our HEIG

[BONNAREL FRANCOIS gmail]

Dear all,
    I will not attend the meeting today.
    I had a quick look on this interesting document : 
https://wiki.ivoa.net/internal/IVOA/HEIG_Winter25/HEIG_obscore_summary.pdf
     These are my retired person with radio domain eye 2 cents on this :
      + o_ucd, o_unit, etc... multiplicity :
           In the case of event lists with specific axes ("new" measured 
quantities) I wonder if o_ucd is the right place to tackle that. o_ucd 
was designed for the "dependant axis". Maybe adding new axes 
characterization should be a better choice. Look  at the description of 
visibilities in the radio extension.
       + s_fov,s_resolution, etc.. min/max with dependency from the 
spectral coordinate (photon energy).
           This is a common issue with radio domain as you know. CADC 
proposed recently to add this in the root Obscore.But
       I wonder if UV/optical/IR astronomers really need that. We should 
not add to much in the root ObsCore. maybe common definition with the 
the radio domain is a better solution.
/     + dataproduct_type : the current ObsCore vocabulary is limited. I 
think the IVOA dataproduct_type effort is the right place to define . To 
my knowledge it's not yet an official vocabulary and adding new termis 
is easy to do following the/
/VEP procedure of vocab 2.0. So that's the place to play in for Heog 
people./
//+ t_min/t_max : see t_gti
      + proposal_id : OK for multiplicity

     New terms :
        + ev_number : OK. I think there is even an IVOA  
characterization DM utype for that.
        + energy_min / energy_max : OK. But I think you know the 
equivalent f_min/f_max for radio domain was rejected by the community 
fairing value conflicts in case of duplication with em_min/ em_max 
(despite Mireille's an mine personal opinion)
        +  t_gti : OK. this is the concept of time support in 
characterization terms. ascii tmoc is a possible format for that. also 
look if DALI proposed an xtype for this kind of list of intervals.
        + irf_ype , irf_description. I wonder if these complementary 
data have to be in ObsCore or are better located in DataLink associated 
to the main product (event list). In that case content_qualifier is the 
place to describe the exact type.
        + access_format, UCDS : I 'm OK with what is written

Cheers

François


Le 23/01/2025 à a$14:47, Bruno Khelifi via heig a écrit :
>
> Dear all,
>
> For the meeting of tomorrow, I send you a Zoom link (that I have 
> reported in our meeting page of the Wiki):
>
> Link:https://u-paris.zoom.us/j/86351476440?pwd=2YMHRRAvFvIgLbdftUt0d4GAa1USmL.1
>
> Meeting ID: 863 5147 6440
> Secret code: 937310
>
> The best,
> Bruno
>
> Le 20/01/2025 à 18:08, Bruno Khelifi via heig a écrit :
>>
>> Dear all,
>>
>> Based of the pool outcome, the best time slot is the ideal one 
>> because some of you could not attend unfortunately. However,
>> the meeting is fixed to this *Friday 24th, 15h30 CET / 9:30 am EST*.
>>
>> The draft meeting page can be found here: 
>> https://wiki.ivoa.net/twiki/bin/view/IVOA/HEIG_Winter25. A meeting 
>> link will be sent by email soon and written in this page.
>>
>> The best,
>> Janet and Bruno
>>
>> Le 16/01/2025 à 12:21, Bruno Khelifi a écrit :
>>>
>>> Dear all,
>>>
>>> First of all, I profit of my email for the season's greetings. Best 
>>> wishes to you and your relatives for this new year. We finished up 
>>> 2024 with the creation of the HEIG with its attached note, which is 
>>> an important achievement for the HE community. Congratulations to all !
>>>
>>> As starting point for our activities, we propose to remotely meet 
>>> via Zoom to exchange about our roadmap for 2025, built from your 
>>> collective inputs. This roadmap will be a guideline for our future 
>>> meetings. Here is a doodle to find out the most appropriate date:
>>> https://doodle.com/meeting/participate/id/bD6Z5Oye
>>>
>>> The tentative agenda is:
>>> - IVOA news (Janet)
>>> - 2025 roadmap: collection of items and definition (all)
>>> - Organisation of HEIG: monthly meetings? and next hybrid meeting
>>> - Thematic remote meeting: Obscore extension proposal by Patrick 
>>> Dowler (see Janet's email of the 01/06/25)
>>> - AoB (based on your feedback)
>>>
>>> The best,
>>> Janet and Bruno
>>>
>>>
>>> Material: HEIG wiki page 
>>> https://wiki.ivoa.net/twiki/bin/view/IVOA/HEGroup
>>>
>>>
>>> -- 
>>>
>>>                           Bruno Khelifi
>>>                    Physicist at CNRS (laboratory APC, Paris)
>>>        Phone: +33.1.57.27.61.58 - Fax: +33.1.57.27.60.71
>>>                APC, IN2P3/CNRS - Universite de Paris Cite
>> -- 
>>
>>                           Bruno Khelifi
>>                    Physicist at CNRS (laboratory APC, Paris)
>>        Phone: +33.1.57.27.61.58 - Fax: +33.1.57.27.60.71
>>                APC, IN2P3/CNRS - Universite de Paris Cite
>>
> -- 
>
>                           Bruno Khelifi
>                    Physicist at CNRS (laboratory APC, Paris)
>        Phone: +33.1.57.27.61.58 - Fax: +33.1.57.27.60.71
>                APC, IN2P3/CNRS - Universite de Paris Cite
>
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