The ESA Herschel Telescope Tiger Team metrology review: modeling

Brian E. Catanzaro; Dominic Doyle; Bas Fransen; Julian Prowald; Amelia Koch

doi:10.1117/12.789239

12 July 2008 The ESA Herschel Telescope Tiger Team metrology review: modeling

Brian E. Catanzaro, Dominic Doyle, Bas Fransen, Julian Prowald, Amelia Koch

Proceedings Volume 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter; 70102S (2008) https://doi.org/10.1117/12.789239
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

ESA commissioned a Tiger Team to review the discrepancy between the prediction and measurement of the telescope back focal length. A team of 16 engineers and scientists collocated at ESA's Estec facility to review the finite element models, optical models, and supporting data to validate the methodology of prediction and verify the results. The team used several modeling techniques including: paraxial models, first order thermal expansion models, full system and metrology raytracing, deterministic and stochastic finite element models. The techniques, assumptions, and results will be discussed.

Citation Download Citation

Brian E. Catanzaro, Dominic Doyle, Bas Fransen, Julian Prowald, and Amelia Koch "The ESA Herschel Telescope Tiger Team metrology review: modeling", Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70102S (12 July 2008); https://doi.org/10.1117/12.789239

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