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Proceedings Paper

PRIMA narrow-angle astrometry errors
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Paper Abstract

With ESO's Phase Referenced Imaging and Micro-arcsecond Astrometry (PRIMA) facility well into its procurement phase expectations are made about the astrometric performance. It appears that in almost all respects the instrumentally induced errors are expected to have Power Spectral densities well below those due to the atmosphere. However for the target performance to be achieved, some effects must reduce by averaging by some 4 orders of magnitude. The most serious worry foreseen is lack of thermal stability in the air-filled Delay Line tunnel, and it is recommended that outside wind influence be impeded.

Paper Details

Date Published: 20 October 2004
PDF: 7 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.552192
Show Author Affiliations
Rudolf S. Le Poole, Leiden Observatory (Netherlands)
Francoise Delplancke, European Southern Observatory (Germany)
Robert N. Tubbs, Leiden Observatory (Netherlands)

Published in SPIE Proceedings Vol. 5491:
New Frontiers in Stellar Interferometry
Wesley A. Traub, Editor(s)

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