Meeting Minutes#

21-10-2025#

Topic: Formats to be used within ECLAT/SARAO sofware

Attendees:

  • Etienne Bonnassieux (ECLAT, Observatoire de Paris)

  • Cyril Tasse (ECLAT, Observatoire de Paris)

  • Jon Kenyon (SARAO)

  • Landman Bester (SARAO)

  • Simon Perkins (SARAO)

  • Oleg Smirnov (SARAO)

Minutes:

  • NRAO and SKAO are going to provide an exhaustive definition of visibility data format in xarray

  • They are also working on doing the same for image formats.

  • Their schema defines MSv4 dataset and datastructures, and will be used to enforce conformity with the schema

  • Basic idea is to have something similar to define the schema for the gains.

  • this is to ensure cross-compatibility between quartical/kms, ddf/pfb

  • versioning of the datastructure can allow for efficient development work

  • long discussion : do we store phase screens as a function inside the dataformat, or just the coefficient

  • all agree that it’s a good idea to define gain solution files as xarrays