Analysis of calibration errors for both short and long stroke white light experiments

Xiaopei Pan

doi:10.1117/12.669849

28 June 2006 Analysis of calibration errors for both short and long stroke white light experiments

Xiaopei Pan

Proceedings Volume 6268, Advances in Stellar Interferometry; 62684B (2006) https://doi.org/10.1117/12.669849
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The SIM PlanetQuest mission can provide microarcsecond (μas) accuracy for exoplanet searches and critical astrophysical research. SIM is the only mission which can measure angular wobbles caused by planets for determination of planetary masses. In order to reach μas accuracy the SIM instrument must be able to measure fringe parameters to the accuracy of picometers. It is necessary to investigate calibration techniques and to carefully analyze influences from ghost images in white light fringe measurements. This work will analyze focusing and tilt variations introduced by thermal changes in calibration processes. In particular the accuracy limits are presented for common short- and long-stroke experiments. A new, simple, practical calibration scheme is proposed and analyzed based on the SIM PlanetQuest's Micro-Arcsecond Metrology (MAM) testbed experiments.

Citation Download Citation

Xiaopei Pan "Analysis of calibration errors for both short and long stroke white light experiments", Proc. SPIE 6268, Advances in Stellar Interferometry, 62684B (28 June 2006); https://doi.org/10.1117/12.669849

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