@inproceedings{60e3f45828404c2297666b3625092a59,
title = "SCDU (Spectral Calibration Development Unit) testbed Narrow angle astrometric performance",
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 reported1. 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.",
keywords = "Astrometry, Interferometer, Narrow angle, SCDU, SIM, Spectral calibration",
author = "Xu Wang and Renaud Goullioud and Bijan Nemati and Michael Shao and Wehmeier, \{Udo J.\} and Weilert, \{Mark A.\} and Werne, \{Thomas A.\} and Wu, \{Janet P.\} and Chengxing Zhai",
year = "2010",
doi = "10.1117/12.857278",
language = "English",
isbn = "9780819482242",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Optical and Infrared Interferometry II",
note = "Optical and Infrared Interferometry II ; Conference date: 27-06-2010 Through 02-07-2010",
}