IVOA Data Model - Running Meetings

This page hosts the agenda and notes for the DM WG Running Meetings.

Next Meeting

Running Meeting #9 - Fruday 31st October 2025 at 14:00 UTC

• Interop session planning

Agenda topics proposals

• In-person attendance
• Session Content
  • LM: offered to do MANGO update, but not sure this is useful.. (agreed, do you have a presentation in Apps?)
  • PH: VO-DML 1.1 status - document and toolkit
  • PD: CAOM-2.5 - new revision ready before interop; probable migration to ivoa-std,
  • ObsCore-1.2 + extensions
    • A working meeting to discuss the data model changes needed to support the Radio+HE+TD notes
      • ObsCore - assessing recommendations for scope and conformity with domain-of-interest.. alternative solutions? e.g. FB recent post regarding response functions in ObsCore vs being available via datalink
      • Extension Models - Single standard for various ObsCore extensions? or individual? or other?
      • VO-DML: datatypes model extensions requested by ObsCore-1.2 and CAOM-2.5
      • DataProduct: modeling of single file product (Spectrum) vs multi-file product ( EventList + IRF )

Feel free to add here the topics you would like to see discussed during the meetings

• (your discussion topic here)
• Spectrum Model: recent topics
  • Spectrum.Char.SpatialAxis.Coverage.Location (20240705)
    • https://github.com/ivoa-std/SpectrumDM/issues/13
    • Is there an action here to look into making this OPTIONAL in the model?
    • Do we need to add something to identify Theoretical?
    • Do we want to recommend how they should identify the dataset as "GAIA DR4"?
  • VOCLASS keyword value in spec does not match example
    • https://github.com/ivoa-std/SpectrumDM/issues/12
  • DATE-OBS keyword
    • https://github.com/ivoa-std/SpectrumDM/issues/8
• IVOA Note for FITS serializations: http://mail.ivoa.net/pipermail/dm/2024-June/006476.html
  • discussion started as question about lightcurve data model, but was concluding with a proposal to develop an IVOA Note with ‘preferred’ serializations for various products in FITS format.
  • This project would require review/assessment of the ‘big players’ currently in practice and define a recommended serialization. This would probably include a dictionary for FITS keywords for metadata at the Dataset/ObsCore level.
  • There are many in the community that are very keen on this project and, I think, would be a valuable resource.

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