May 2020 IVOA Interop Meeting - Annotations of light curves using VOTable

• When - Tuesday May 05 2020 15:00 UTC
• Where - Zoom session, details available soon.

The document source in GitHub.

Purpose of the Note

• How could the proposed annotation help interoperability?
  • it could allow to combine photometry in same / different filters / missions to help study / classify astronomical sources
  • it could allow to find information of the filter
  • it could allow to find time series in the VO

Topics to discuss

• Do we need to TAG a VOTable Document?
  • Do applications need to know an annotation is consistent with what the Note is specifying?
  • Does it help applications to have a TAG pointing to the document? if so, how?

• Do we want to generalise to annotating other type of time series data?
  • What about radial velocities, or time series of positions?
  • Do we want to tackle this already in the same note or would TIMESYS suffice for now?

• How do we annotate a table with multiple filters in the same column?
  • ForeignKey to reference rows VS several TABLES?
  • ForeignKey or specific usage of GROUPs and double referencing?

• How does an application know this is a timeseries? Usage of simple utypes
  • Inherit utypes from Obscore: dataproduct_type and dataproduct_subtype?
  • If so, where do they go? Global property of VOTable, a RESOURCE or aTABLE?