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Observatoire astronomique de Strasbourg, Université de Strasbourg, CNRS, Strasbourg
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France
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Abstract Reference: 30890
Identifier: P1.24
Presentation: Poster presentation
Key Theme: 1 Reduction and Analysis Algorithms for Large Databases and Vice-versa

HiPS Catalogue Generation

Authors:
Pineau François-Xavier, Boch Thomas, Fernique Pierre

HiPS (Hierarchical Progressive Survey) offers a user-friendly way to explore potentially very large catalogues on the sky, such as the GAIA catalogue. The user can browse the sky by zooming and panning, while all data transfers are transparently handled by the client (e.g. Aladin). The all-sky view displays the most interesting objects given a spatial distribution mimicking the global spatial distribution of objects. Once the user has identified a region of interest and centred it by panning, more objects emerged as he keeps zooming in. The CDS has developed a tool (HiPSGenCat) to generate HiPS versions of the catalogues it hosts. This tool has been made public so anyone can generate its own HiPS catalogues. After a reminder of the HiPS catalogue data-structure, we detail the algorithm used in the HiPSGenCat tool.