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Precision Integrated Optics Near-infrared Imaging ExpeRiment

PIONIER in a beautiful 4min movie:
https://youtu.be/7YUSdauRZNk


PIONIER stands for Precision Integrated-Optics Near-infrared Imaging ExpeRiment. PIONIER is a 4-telescope instrument for the VLTI that combines four ATs or four UTs using an integrated optics combiner. It provides low spectral resolution in H band. PIONIER is designed for imaging with a specific emphasis on precision closure-phases and visibilities. PIONIER has been approved by STC at spring 2009 and first science runs started in October 2010.

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