End-to-end optomechanical simulation for high-precision global astrometry

Daniele Gardiol; Davide Loreggia; Sergio Mannu; Sergio Mottini; Luca Perachino; Mario Gai; Mario G. Lattanzi

doi:10.1117/12.550356

16 September 2004 End-to-end optomechanical simulation for high-precision global astrometry

Daniele Gardiol, Davide Loreggia, Sergio Mannu, Sergio Mottini, Luca Perachino, Mario Gai, Mario G. Lattanzi

Proceedings Volume 5497, Modeling and Systems Engineering for Astronomy; (2004) https://doi.org/10.1117/12.550356
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

We describe a software tool developed to simulate the behaviour of the angle between two lines of sight in a dual view telescope assembly (usually referred to as basic angle) due to optical misalignments induced by thermo-mechanical fluctuations. The tool applies to a variety of reflective optical designs. In principle, not only the basic angle behaviour can be simulated, but also other optical parameters. As a practical example, we present and discuss results obtained from application of our software to the case of the Gaia baseline optical design. We show that the final error can be severely degraded by fluctuations of the basic angle due to thermo-mechanical effects.

Citation Download Citation

Daniele Gardiol, Davide Loreggia, Sergio Mannu, Sergio Mottini, Luca Perachino, Mario Gai, and Mario G. Lattanzi "End-to-end optomechanical simulation for high-precision global astrometry", Proc. SPIE 5497, Modeling and Systems Engineering for Astronomy, (16 September 2004); https://doi.org/10.1117/12.550356

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