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Palomar Testbed Interferometer: update

Lane, B. F. and Colavita, M. M. and Boden, A. F. and Lawson, P. R. (2000) Palomar Testbed Interferometer: update. In: Interferometry in Optical Astronomy. Proceedings of SPIE. No.4006. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 452-458. ISBN 9780819436313. http://resolver.caltech.edu/CaltechAUTHORS:20181204-132723350

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Abstract

The Palomar Testbed Interferometer is a long-baseline near- infrared interferometer operating at Palomar Observatory, CA. The interferometer has a maximum baseline of 110 m, 40-cm collecting apertures, and active fringe tracking. It also incorporates a dual-star architecture to enable cophasing and narrow-angle astrometry. We will discuss recent system improvements and engineering results. These include upgrades to allow for longer coherent integration times, H band operation, and cophasing using delay line feedforward. Recent engineering tests of astrometry in dual-star mode have shown a night-to-night repeatability of 100 µas on a bright test target. Several new observation planning tools have been developed, and data reduction tools have been automated to allow fully pipelined nightly reductions and archiving.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.390239DOIArticle
Additional Information:© 2000 Society of Photo-Optical Instrumentation Engineers (SPIE). PTI was developed by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Funding for the development of PTI was provided by NASA under its TOPS (Toward Other Planetary Systems) and ASEPS (Astronomical Studies of Extrasolar Planetary Systems) programs, and from the JPL Director's Discretionary Fund. Ongoing funding has been provided by NASA through its Origins Program and from the JPL Directors Research and Development Fund.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
JPL Director's Discretionary FundUNSPECIFIED
JPL Research and Technology Development FundUNSPECIFIED
Subject Keywords:Interferometry, Instrumentation, Astrometry, Planet-detection
Record Number:CaltechAUTHORS:20181204-132723350
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181204-132723350
Official Citation:Benjamin F. Lane, M. Mark Colavita, Andrew F. Boden, Peter R. Lawson, "Palomar Testbed Interferometer: update," Proc. SPIE 4006, Interferometry in Optical Astronomy, (5 July 2000); doi: 10.1117/12.390239
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91461
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:05 Dec 2018 21:49
Last Modified:05 Dec 2018 21:49

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