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Proceedings Paper

Flowdown of the TMT astrometry error budget(s) to the IRIS design
Author(s): Matthias Schöck; David Andersen; John Rogers; Brent Ellerbroek; Eric Chisholm; Jennifer Dunn; Glen Herriot; James Larkin; Anna Moore; Ryuji Suzuki; James Wincentsen; Shelley Wright
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Paper 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.

Paper Details

Date Published: 9 August 2016
PDF: 8 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 9908AD (9 August 2016); doi: 10.1117/12.2231914
Show Author Affiliations
Matthias Schöck, Thirty Meter Telescope International Observatory (Canada)
David Andersen, NRC - Herzberg Astronomy & Astrophysics (Canada)
John Rogers, Thirty Meter Telescope International Observatory (Canada)
Brent Ellerbroek, Thirty Meter Telescope (United States)
Eric Chisholm, Thirty Meter Telescope (United States)
Jennifer Dunn, NRC - Herzberg Astronomy & Astrophysics (Canada)
Glen Herriot, NRC - Herzberg Astronomy & Astrophysics (Canada)
James Larkin, Univ. of California, Los Angeles (United States)
Anna Moore, California Institute of Technology (United States)
Ryuji Suzuki, National Astronomical Observatory of Japan (Japan)
James Wincentsen, California Institute of Technology (United States)
Shelley Wright, Univ. of California, San Diego (United States)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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