Sunday, March 1, 2015

Expected Astrometric Performance of Gaia

Gaia astrometric science performance - post-launch predictions


de Bruijne et al


The standard errors of the end-of-mission Gaia astrometry have been re-assessed after conclusion of the in-orbit commissioning phase of the mission. An analytical relation is provided for the parallax standard error as function of Gaia G magnitude (and V-I colour) which supersedes the pre-launch relation provided in de Bruijne (2012).

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