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

Xu Wang; Renaud Goullioud; Bijan Nemati; Michael Shao; Udo J. Wehmeier; Mark A. Weilert; Thomas A. Werne; Janet P. Wu; Chengxing Zhai

doi:10.1117/12.857278

21 July 2010 SCDU (Spectral Calibration Development Unit) testbed narrow angle astrometric performance

Xu Wang, Renaud Goullioud, Bijan Nemati, Michael Shao, Udo J. Wehmeier, Mark A. Weilert, Thomas A. Werne, Janet P. Wu, Chengxing Zhai

Author Affiliations +

Proceedings Volume 7734, Optical and Infrared Interferometry II; 77344J (2010) https://doi.org/10.1117/12.857278
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

Xu Wang, Renaud Goullioud, Bijan Nemati, Michael Shao, Udo J. Wehmeier, Mark A. Weilert, Thomas A. Werne, Janet P. Wu, and Chengxing Zhai "SCDU (Spectral Calibration Development Unit) testbed narrow angle astrometric performance", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77344J (21 July 2010); https://doi.org/10.1117/12.857278

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available