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Expected observing efficiency of the Maunakea Spectroscopic Explorer (MSE)
Author(s): Nicolas Flagey; Kei Szeto; Kevin Ho; Billy Mahoney; Alan McConnachie; Alexis Hill; Calum Hervieu
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Paper Abstract

The Maunakea Spectroscopic Explorer (MSE) will obtain millions of spectra each year in the optical to near-infrared, at low (R ≃ 3; 000) to high (R ≃ 40; 000) spectral resolution by observing <4,000 spectra per pointing via a highly multiplexed fiber-fed system. Key science programs for MSE include black hole reverberation mapping, stellar population analysis of faint galaxies at high redshift, and sub-km/s velocity accuracy for stellar astrophysics.

One key metric of the success of MSE will be its survey speed, i.e. how many spectra of good signal-to-noise ratio will MSE be able to obtain every night and every year. This is defined at the higher level by the observing efficiency of the observatory and should be at least 80%, as indicated in the Science Requirements.

In this paper we present the observing efficiency budget developed for MSE based on historical data at the Canada-France-Hawaii Telescope and other Maunakea Observatories. We describe the typical sequence of events at night to help us compute the observing efficiency and how we envision to optimize it to meet the science requirements

Paper Details

Date Published: 10 July 2018
PDF: 18 pages
Proc. SPIE 10704, Observatory Operations: Strategies, Processes, and Systems VII, 107042R (10 July 2018); doi: 10.1117/12.2312698
Show Author Affiliations
Nicolas Flagey, Canada-France-Hawaii Telescope Corp. (United States)
Kei Szeto, Canada-France-Hawaii Telescope Corp. (United States)
Kevin Ho, Canada-France-Hawaii Telescope Corp. (United States)
Billy Mahoney, Canada-France-Hawaii Telescope Corp. (United States)
Alan McConnachie, NRC Herzberg (Canada)
Alexis Hill, Canada-France-Hawaii Telescope Corp. (United States)
Calum Hervieu, Canada-France-Hawaii Telescope Corp. (United States)


Published in SPIE Proceedings Vol. 10704:
Observatory Operations: Strategies, Processes, and Systems VII
Alison B. Peck; Robert L. Seaman; Chris R. Benn, Editor(s)

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