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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 421532.0, MPI für Astronomie / Publikationen_mpia
Gaia: organisation and challenges for the data processing
Authors:Mignard, F.; Bailer-Jones, C.; Bastian, U.; Drimmel, R.; Eyer, L.; Katz, D.; van Leeuwen, F.; Luri, X.; O'Mullane, W.; Passot, X.; Pourbaix, D.; Prusti, T.
Language:English
Publisher:Cambridge Univ. Press
Place of Publication:Cambridge
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:A Giant Step: from Milli- to Micro-arcsecond Astrometry
Start Page:224
End Page:230
Title of Series:IAU Symposium
Volume (in Series):248
Name of Conference/Meeting:IAU Symposium
Review Status:not specified
Audience:Experts Only
Abstract / Description:Gaia is an ambitious space astrometry mission of ESA with a main objective to map the sky in astrometry and photometry down to a magnitude 20 by the end of the next decade. While the mission is built and operated by ESA and an industrial consortium, the data processing is entrusted to a consortium formed by the scientific community, which was formed in 2006 and formally selected by ESA one year later. The satellite will downlink around 100 TB of raw telemetry data over a mission duration of 5 years from which a very complex iterative processing will lead to the final science output: astrometry with a final accuracy of a few tens of microarcseconds, epoch photometry in wide and narrow bands, radial velocity and spectra for the stars brighter than 17 mag. We discuss the general principles and main difficulties of this very large data processing and present the organization of the European Consortium responsible for its design and implementation.
Free Keywords:astrometry; instrumentation: photometers; techniques: spectroscopic; methods: data analysis
Comment of the Author/Creator:Date: 2008, n/a 1, 2008
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2008IAUS..248..224M [ID No:1]
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