24 July 2014 The interferometric baselines and GRAVITY astrometric error budget
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Abstract
GRAVITY is a new generation beam combination instrument for the VLTI. Its goal is to achieve microarsecond astrometric accuracy between objects separated by a few arcsec. This 106 accuracy on astrometric measurements is the most important challenge of the instrument, and careful error budget have been paramount during the technical design of the instrument. In this poster, we will focus on baselines induced errors, which is part of a larger error budget.
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S. Lacour, S. Lacour, F. Eisenhauer, F. Eisenhauer, S. Gillessen, S. Gillessen, O. Pfuhl, O. Pfuhl, Y. Kok, Y. Kok, G. Perrin, G. Perrin, K. Rousselet-Perraut, K. Rousselet-Perraut, C. Straubmeier, C. Straubmeier, W. Brandner, W. Brandner, A. Amorin, A. Amorin, J. Woillez, J. Woillez, H. Bonnet, H. Bonnet, } "The interferometric baselines and GRAVITY astrometric error budget", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462E (24 July 2014); doi: 10.1117/12.2057366; https://doi.org/10.1117/12.2057366
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