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SCDU (Spectral Calibration Development Unit) testbed narrow angle astrometric performance

Show simple item record Wang, Xu Goullioud, Renaud Nemati, Bijan Shao, Michael Wehmeier, Udo J. Weilert, Mark A. Werne, Thomas A. Wu, Janet P. Zhai, Chengxing 2014-09-19T18:02:34Z 2014-09-19T18:02:34Z 2010-06-27
dc.identifier.citation SPIE Astronomical Telescopes and Instrumentation 2010, San Diego, California, June 27 - July 2, 2010 en_US
dc.identifier.clearanceno 10-2506
dc.description.abstract The most stringent astrometric performance requirements on NASA's SIM(Space Interferometer Mission)-Lite mission will come from the so-called Narrow-Angle (NA) observing scenario, aimed at finding Earth-like exoplanets, where the interferometer chops between the target star and several nearby reference stars multiple times over the course of a single visit. Previously, about 20 pm NA error with various shifts was reported. Since then, investigation has been under way to understand the mechanisms that give rise to these shifts. In this paper we report our findings, the adopted mitigation strategies, and the resulting testbed performance. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2010 en_US
dc.subject Interferometer en_US
dc.subject Astrometry en_US
dc.title SCDU (Spectral Calibration Development Unit) testbed narrow angle astrometric performance en_US
dc.type Preprint en_US

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