Corner cube model for internal metrology system of Space Interferometer Mission (SIM)

Xu Wang; Robert Korechoff; Mike Heflin; Lisa Sievers

doi:10.1117/12.670105

28 June 2006 Corner cube model for internal metrology system of Space Interferometer Mission (SIM)

Xu Wang, Robert Korechoff, Mike Heflin, Lisa Sievers

Proceedings Volume 6268, Advances in Stellar Interferometry; 62682P (2006) https://doi.org/10.1117/12.670105
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

A corner cube (CC) articulation model has been developed to evaluate the SIM internal metrology (IntMet) optical delay bias (with the accuracy of picometer) due to the component imperfections, such as vertex offset, reflection coating index error, dihedral error, and surface figure error at each facet. This physics-based and MATLAB-implemented geometric optics model provides useful guidance on the flight system design, integration, and characterization. The first portion of this paper covers the CC model details. Then several feature of the model, such as metrology beam footprint visualization, roofline straddling/crossing analysis, and application to drive the sub-system design and the error budget flow-down, are demonstrated in the second part.

Citation Download Citation

Xu Wang, Robert Korechoff, Mike Heflin, and Lisa Sievers "Corner cube model for internal metrology system of Space Interferometer Mission (SIM)", Proc. SPIE 6268, Advances in Stellar Interferometry, 62682P (28 June 2006); https://doi.org/10.1117/12.670105

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