Flowdown of the TMT astrometry error budget(s) to the IRIS design

Matthias Schöck; David Andersen; John Rogers; Brent Ellerbroek; Eric Chisholm; Jennifer Dunn; Glen Herriot; James Larkin; Anna Moore; Ryuji Suzuki; James Wincentsen; Shelley Wright

doi:10.1117/12.2231914

9 August 2016 Flowdown of the TMT astrometry error budget(s) to the IRIS design

Matthias Schöck, David Andersen, John Rogers, Brent Ellerbroek, Eric Chisholm, Jennifer Dunn, Glen Herriot, James Larkin, Anna Moore, Ryuji Suzuki, James Wincentsen, Shelley Wright

Author Affiliations +

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 9908AD (2016) https://doi.org/10.1117/12.2231914
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

TMT has defined the accuracy to be achieved for both absolute and differential astrometry in its top-level requirements documents. Because of the complexities of different types of astrometric observations, these requirements cannot be used to specify system design parameters directly. The TMT astrometry working group therefore developed detailed astrometry error budgets for a variety of science cases. These error budgets detail how astrometric errors propagate through the calibration, observing and data reduction processes. The budgets need to be condensed into sets of specific requirements that can be used by each subsystem team for design purposes. We show how this flowdown from error budgets to design requirements is achieved for the case of TMT's first-light Infrared Imaging Spectrometer (IRIS) instrument.

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Matthias Schöck, David Andersen, John Rogers, Brent Ellerbroek, Eric Chisholm, Jennifer Dunn, Glen Herriot, James Larkin, Anna Moore, Ryuji Suzuki, James Wincentsen, and Shelley Wright "Flowdown of the TMT astrometry error budget(s) to the IRIS design", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 9908AD (9 August 2016); https://doi.org/10.1117/12.2231914

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