Landais Gilles

Abstract Reference: 30903
Identifier: P5.2
Presentation: Poster presentation
Key Theme: 5 Data Models in Astrophysics

Mapping images and spectra metadata with ObsCore DM

Authors:
Landais Gilles, Michel Laurent, Derriere Sebastien, Ocvirk Pierre, Royer Felix, Brouty Marianne, Emmanuelle Perret, Vannier Patricia, Ghéheneux Sylvain

In addition to its catalogues collection, VizieR provides access to associated data using metadata from the ObsCore Data Model.

ObsCore is a standard of the Virtual Observatory used to map images, spectra or time-series resources with standardized metadata. Then the resources can be queried through the VO.

Associated data such as images and spectra are usually provided in FITS format, therefore one has to make the mapping between FITS headers and ObsCore.

However the heterogeneity of the FITS headers or incomplete FITS headers increase the difficulty to make this mapping.

We will present statistics on the FITS headers contents among the resources provided in VizieR.

A new VizieR service gives access to spectra or images. These resources are ingested with tools developed by CDS and built on the Saada engine.

These services assist users to create the mapping including validation.