Fernique Pierre
CDS - Observatoire Astronomique de Strasbourg, Strasbourg, France

Miscellaneous Information

Miscellaneous Information

Abstract Reference: 30293
Identifier: O3.2
Presentation: Oral communication
Key Theme: 4 Long-term Management of Data Archives

Long-term management of 1000s of All-Sky reference data sets using the HiPS network

Fernique Pierre, Thomas Boch, Oberto Anais, Allen Mark, Durand Daniel, Ebisawa Ken, Bruno Merin, 


Over the past few years the Hierarchical Progressive Surveys (HiPS) system has become a key method for the browsing and distributing all-sky survey data. As of today, HiPS data occupy  about 100 TB of data, and this volume is expected to double in size every year as the production of a dozen of HiPS providers including ESAC, JAXA, CADC and CDS grows. HiPS tiles are used by thousands of users every day through various HiPS compatible clients: Aladin, MIZAR, Aladin Lite, and Aladin-Lite based ESASky and JUDO2. In this extremelly fast growing context, we will discuss why the HiPS network has excellent capabilities for long term management of all-sky data. We will also highlight how the intrinsic HiPS architecture based on the well known HEALPix tessellation, a simple tile structure, and implemented using a simple distribution method based only on a basic HTTP server, and being standardised by IVOA, constitutes an extremely robust foundation for a system that will support all-sky data discovery and distribution for the next decade.