Target-based fiber assignment for large survey spectrographs

Christoph E. R. Schaefer; Laleh Makarem; Jean-Paul Kneib

doi:10.1117/12.2232428

26 July 2016 Target-based fiber assignment for large survey spectrographs

Christoph E. R. Schaefer, Laleh Makarem, Jean-Paul Kneib

Proceedings Volume 9913, Software and Cyberinfrastructure for Astronomy IV; 991335 (2016) https://doi.org/10.1117/12.2232428
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Next generation massive spectroscopic survey projects have to process a massive amount of targets. The preparation of subsequent observations should be feasible in a reasonable amount of time. We present a fast algorithm for target assignment that scales as O(log(n)). Our proposed algorithm follow a target based approach, which enables to assign large number of targets to their positioners quickly and with a very high assignment efficiency. We also discuss additional optimization of the fiber positioning problem to take into account the positioner collision problems and how to use the algorithm for an optimal survey strategy. We apply our target-based algorithm in the context of the MOONS project.

Citation Download Citation

Christoph E. R. Schaefer, Laleh Makarem, and Jean-Paul Kneib "Target-based fiber assignment for large survey spectrographs", Proc. SPIE 9913, Software and Cyberinfrastructure for Astronomy IV, 991335 (26 July 2016); https://doi.org/10.1117/12.2232428

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