News for the ObsCore Radio extension

[BONNAREL FRANCOIS]

Dear all,

There is a new comment by Mark Kettenis which I copy/pasted from a 
google doc document on the ivoa.net radio dedicated page (see URL 
below). Thank you Mark
That's this:
>
> Also: with ultrawide band receivers (for instance: 20 GHz bandwidth at 
> 7mm) it may happen that the number of spectral windows (each with its 
> own setup) largely increases thus translating in a multiplication of 
> entry lines in ObsCore 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/ObsCore> for the same 
> observation. How do we plan to deal with these cases? Are we happy to 
> have a large number of records in such cases?
>
> /I think it's difficult to avoid. Or we have to group together several 
> spectral windows and use the multi-interval support concept 
> FrancoisBonnarel 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/FrancoisBonnarel> - 
> 2023-02-10"/
>
> /Something like a spectral-coverage MOC could be useful here, but that 
> would be something for a future ObsCore 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/ObsCore> update as it isn't 
> really radio-specific. I think it makes sense to describe data with 
> small "holes" in the spectral coverage using a single ObsCore 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/ObsCore> entry, (i.e. 16 
> MHz "bands" separated by something like 1 MHz), but describe data with 
> larger holes by multiple entries (i.e. 1GHz at 4GHz + 1GHz at 15GHz + 
> 1GHz at 22GHz). That would help discovery because people may discard 
> individual entries with a small amount of bandwidth on grounds of not 
> providing enough sensitivity. MarkKettenis 
> <https://wiki.ivoa.net/twiki/bin/view/IVOA/MarkKettenis> -2023-03-01/
>
An issue is still to be created on github for this

Cheers
François

Le 10/02/2023 à 11:44, BONNAREL FRANCOIS a écrit :
> Dear radio astronomy fans,
>
>      - The ObsCore extension for Visibility data has been extended in 
> scope to become ObsCore extension for radio data
>
>      - It is intended that it becomes a DM WD ASAP. SO it has been 
> imported into a new ivoa-std github repository : 
> https://github.com/ivoa-std/ObsCoreExtensionForRadioData (thanks to 
> ivoa-std owners and DM chair)
>
>      - All recent comments by Alessandra, Vincenzo, Marco, John and 
> answers by Mireille, Baptiste and me have been reported there as issues.
>
>      - The old repository 
> https://github.com/ivoa/ObsCoreExtensionForVisibilityData is still 
> there for legacy discussion, but you should not use it for new issues. 
> Go to the new repository instead.
>
>      - For long term legacy I opened an ivoa twiki page 
> (https://wiki.ivoa.net/twiki/bin/view/IVOA/ObsCoreExtensionForRadioData) 
> accessible form the main RadioIG page 
> (https://wiki.ivoa.net/twiki/bin/view/IVOA/IvoaRadio). The content is 
> the same than the issues on the github repository.
>
>     - For further discussion use whatever you prefer : Twiki edition, 
> github issues or PR, or emails on this list. I don't recommend to use 
> the google doc document created by Alessandra and others any longer. 
> The three supports should be enough.
>
>     - I plan to write a first github PR with all non-controversy 
> changes in the coming days
>
> Cheers
>
> François as editor of this specification project
>
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