Overall properties of the Gaia DR1 reference frame

Author: Liu N.   Zhu Z.   Liu J.-C.   Ding C.-Y.  

Publisher: Edp Sciences

E-ISSN: 1432-0746|599|issue|A140-A140

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.599, Iss.issue, 2017-03, pp. : A140-A140

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Abstract

Aims. The first Gaia data release (Gaia DR1) provides 2191 ICRF2 sources with their positions in the auxiliary quasar solution and five astrometric parameters – positions, parallaxes, and proper motions – for stars in common between the Tycho-2 catalogue and Gaia in the joint Tycho-Gaia astrometric solution (TGAS). We aim to analyze the overall properties of Gaia DR1 reference frame.

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