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Proceedings Paper

The interferometric baselines and GRAVITY astrometric error budget
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Paper 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.

Paper Details

Date Published: 24 July 2014
PDF: 6 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462E (24 July 2014); doi: 10.1117/12.2057366
Show Author Affiliations
S. Lacour, Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique, CNRS, Observatoire de Paris à Meudon (France)
F. Eisenhauer, Max-Planck-Institut für extraterrestrische Physik (Germany)
S. Gillessen, Max-Planck-Institut für extraterrestrische Physik (Germany)
O. Pfuhl, Max-Planck-Institut für extraterrestrische Physik (Germany)
Y. Kok, Max-Planck-Institut für extraterrestrische Physik (Germany)
G. Perrin, Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique, CNRS, Observatoire de Paris à Meudon (France)
K. Rousselet-Perraut, Institut de Planétologie et d’Astrophysique de Grenoble, CNRS, Univ. Grenoble Alpes (France)
C. Straubmeier, Univ. zu Köln (Germany)
W. Brandner, Max-Planck-Institut für Astronomie (Germany)
A. Amorin, Fundacão da Faculdade de Ciências da Univ. de Lisboa (Portugal)
J. Woillez, European Southern Observatory (Germany)
H. Bonnet, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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