The guiding system for the Sloan Digital Sky Survey multi-object fibre positioner

José Sánchez-Gallego; Conor Sayres; Richard Pogge; Dmitry Bizyaev; Juna Kollmeier

doi:10.1117/12.2629738

29 August 2022 The guiding system for the Sloan Digital Sky Survey multi-object fibre positioner

José Sánchez-Gallego, Conor Sayres, Richard Pogge, Dmitry Bizyaev, Juna Kollmeier

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121845U (2022) https://doi.org/10.1117/12.2629738
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Fifth iteration of the Sloan Digital Sky Survey entered the instrument commissioning phase for its robotic fibre positioner (FPS) in December 2021 and will move into full science operations shortly after. The guiding system for the FPS consists of six CCD cameras located in the periphery of the field of view of the instrument; these cameras are used for field acquisition, guiding, and focus corrections. In this presentation I will describe the instrument setup, design choices, focal plane modelling, and the software tools used for acquisition and guiding. Acquisition is performed using an offline version of the astrometry.net software (Lang et al. 2010) while guiding uses a preselected list of source stars from the Gaia catalogue. I will discuss the performance of the system, possible improvements, and lessons learned from the design and development process.

Citation Download Citation

José Sánchez-Gallego, Conor Sayres, Richard Pogge, Dmitry Bizyaev, and Juna Kollmeier "The guiding system for the Sloan Digital Sky Survey multi-object fibre positioner", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121845U (29 August 2022); https://doi.org/10.1117/12.2629738

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