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Long-term Management of 1000s of All-Sky Reference Data Sets Using the HiPS Network

Abstract : Over the past few years the Hierarchical Progressive Survey (HiPS) has become a key method for the distribution of all-sky reference data. Today, HiPS represents about 100 TB of data, and is expected to double each year as the network of a dozen of HiPS providers including ESAC, JAXA, CADC and CDS grows. HiPS data sets are used by thousands of users per day through various HiPS aware clients: Aladin, MIZAR, Aladin Lite, and Aladin-Lite based ESASky and JUDO2. We expect that this technology will be one of the main methods for the distribution of surveys - images, catalogs and cubes - for the next decade. In this extremely fast growing environment, we will discuss why the HiPS network is an excellent candidate for long term management of all-sky reference data. We highlight how the intrinsic HiPS architecture based on the well known HEALPix geometry, a simple tile structure, straightforward distribution method based only on a basic HTTP server, and being standardised by IVOA, constitutes an extremely robust foundation for a system which will support all-sky data distribution for a long time.
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https://hal.archives-ouvertes.fr/hal-02993708
Contributor : Mark Allen <>
Submitted on : Friday, November 6, 2020 - 11:41:44 PM
Last modification on : Saturday, November 7, 2020 - 3:30:16 AM

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Pierre Fernique, Thomas Boch, Anaïs Oberto, M Allen, Daniel Durand, et al.. Long-term Management of 1000s of All-Sky Reference Data Sets Using the HiPS Network. Astronomical Data Analysis Software and Systems XXVI, Oct 2016, Trieste, Italy. ⟨hal-02993708⟩

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