Picometer level modeling of a shared vertex double corner cube in the Space Interferometry Mission kite testbed

Gary M. Kuan; Frank G. Dekens

doi:10.1117/12.672489

28 June 2006 Picometer level modeling of a shared vertex double corner cube in the Space Interferometry Mission kite testbed

Gary M. Kuan, Frank G. Dekens

Author Affiliations +

Proceedings Volume 6268, Advances in Stellar Interferometry; 62682L (2006) https://doi.org/10.1117/12.672489
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The Space Interferometry Mission (SIM) is a microarcsecond interferometric space telescope that requires picometer level precision measurements of its truss and interferometer baselines. Single-gauge metrology errors due to non-ideal physical characteristics of corner cubes reduce the angular measurement capability of the science instrument. Specifically, the non-common vertex error (NCVE) of a shared vertex, double corner cube introduces micrometer level single-gauge errors in addition to errors due to dihedral angles and reflection phase shifts. A modified SIM Kite Testbed containing an articulating double corner cube is modeled and the results are compared to the experimental testbed data. The results confirm modeling capability and viability of calibration techniques.

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Gary M. Kuan and Frank G. Dekens "Picometer level modeling of a shared vertex double corner cube in the Space Interferometry Mission kite testbed", Proc. SPIE 6268, Advances in Stellar Interferometry, 62682L (28 June 2006); https://doi.org/10.1117/12.672489

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