The interferometric baselines and GRAVITY astrometric error budget

S. Lacour; F. Eisenhauer; S. Gillessen; O. Pfuhl; Y. Kok; G. Perrin; K. Rousselet-Perraut; C. Straubmeier; W. Brandner; A. Amorin; J. Woillez; H. Bonnet

doi:10.1117/12.2057366

24 July 2014 The interferometric baselines and GRAVITY astrometric error budget

S. Lacour, F. Eisenhauer, S. Gillessen, O. Pfuhl, Y. Kok, G. Perrin, K. Rousselet-Perraut, C. Straubmeier, W. Brandner, A. Amorin, J. Woillez, H. Bonnet

Author Affiliations +

Proceedings Volume 9146, Optical and Infrared Interferometry IV; 91462E (2014) https://doi.org/10.1117/12.2057366
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

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.

Citation Download Citation

S. Lacour, F. Eisenhauer, S. Gillessen, O. Pfuhl, Y. Kok, G. Perrin, K. Rousselet-Perraut, C. Straubmeier, W. Brandner, A. Amorin, J. Woillez, and H. Bonnet "The interferometric baselines and GRAVITY astrometric error budget", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462E (24 July 2014); https://doi.org/10.1117/12.2057366

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available