Maunakea Spectroscopic Explorer (MSE): the prime focus subsystems: requirements and interfaces

Hill, Alexis; Blin, Alexandre; Horville, D.; Mignot, Shan; Szeto, Kei

doi:10.1117/12.2314387

Cited by 9 publications

(4 citation statements)

References 6 publications

(7 reference statements)

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“…14 Table 1 shows the detailed spectral coverage and resolution of the low resolution (LR), MR, and HR spectroscopic settings for the CoD design. 15 The spectral resolutions are determined at the central wavelength of each band-482, 626, and 767 nm correspond to the effective wavelength of the g', r', and i' bands of the Sloan Digital Sky Survey filter system, respectively. 16 In addition, the 1235 nm central wavelength of the near-infrared (NIR) band for the LR instrument corresponds to the effective wavelength of the J band of the Two Micron All Sky Survey.…”

Section: Mse Instrumentmentioning

confidence: 99%

“…The MSE HR instrument will have an approximate resolution of R≈30,000 and wavelength coverage of about 360 to 900 nm 14 Table 1. shows the detailed spectral coverage and resolution of the low resolution (LR), MR, and HR spectroscopic settings for the CoD design 15 . The spectral resolutions are determined at the central wavelength of each band—482, 626, and 767 nm correspond to the effective wavelength of the g ’, r ’, and i ’ bands of the Sloan Digital Sky Survey filter system, respectively 16 .…”

Section: Overview Of Msementioning

confidence: 99%

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Maunakea Spectroscopic Explorer exposure time calculator for end-to-end simulator: to optimizing spectrograph design and observing simulation

Ji,

Sobeck,

Kim

et al. 2024

J. Astron. Telesc. Instrum. Syst.

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The Maunakea Spectroscopic Explorer (MSE) project will provide multi-object spectroscopy in the optical and near-infrared bands using an 11.25-m aperture telescope, repurposing the original Canada-France-Hawaii Telescope site. MSE will observe 4332 objects per single exposure with a field of view of 1.5 square degrees, utilizing two spectrographs with low-moderate (R ∼ 3000, 6000) and high (R ≈ 30;000) spectral resolution. In general, an exposure time calculator (ETC) is used to estimate the performance of an observing system by calculating the signalto-noise ratio (S/N) and exposure time. We present the design of the MSE ETC, which has four calculation modes (S/N, exposure time, S/N trend with wavelength, and S/N trend with magnitude) and incorporates the MSE system requirements as specified in the conceptual design. The MSE ETC currently allows for user-defined inputs of the target AB magnitude, water vapor, air mass, and sky brightness AB magnitude (additional user inputs can be provided depending on the computational mode). The ETC is built using Python 3.7 and features a graphical user interface that allows for cross-platform use. The development process of the ETC software follows an Agile methodology and utilizes the unified modeling language diagrams to visualize the software architecture. We also describe the testing and verification of the MSE ETC.

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Section: Mse Instrumentmentioning

confidence: 99%

Section: Overview Of Msementioning

confidence: 99%

Maunakea Spectroscopic Explorer exposure time calculator for end-to-end simulator: to optimizing spectrograph design and observing simulation

Ji,

Sobeck,

Kim

et al. 2024

J. Astron. Telesc. Instrum. Syst.

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“…The positioner system review panel recommended the Australian Astronomical Observatory (AAO) Sphinx 2 fibre positioner [5] system as the primary design to move forward in the PDP and keeping the University of Science and Technology of China (USTC) design as the backup design. Three other review panels recommeded follow-up delta-CoDR's for the subystems: TEA [6] (hexapod, instrument rotator and WFC optical barrel), fibre transmission system [7] and low/moderate resolution spectrograph [8] as their conceptual designs were judged as either incomplete or presenting high technical risks to the project. The fibre transmission system delta-CoDR is scheduled for July 2018.…”

Section: Highlights From Subsystem Design Reviews -Findings and Recom...mentioning

confidence: 99%

Maunakea spectroscopic explorer advancing from conceptual design

Szeto

Simons

Bauman

et al. 2018

Ground-Based and Airborne Telescopes VII

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The Maunakea Spectroscopic Explorer (MSE) project has completed its Conceptual Design Phase. This paper is a status report of the MSE project regarding its technical and programmatic progress. The technical status includes its conceptual design and system performance, and highlights findings and recommendations from the System and various subsystems design reviews. The programmatic status includes the project organization and management plan for the Preliminary Design Phase. In addition, this paper provides the latest information related to the permitting process for Maunakea construction.

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“…12, the top end assembly (Ref. 13,14), the fiber bundle system (Ref. 15,16), the fiber positioners system (Ref.…”

Section: Introductionmentioning

confidence: 99%

Expected observing efficiency of the Maunakea Spectroscopic Explorer (MSE)

Flagey

Szeto

et al. 2018

Observatory Operations: Strategies, Processes, and Systems VII

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The Maunakea Spectroscopic Explorer (MSE) will obtain millions of spectra each year in the optical to nearinfrared, 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.

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Maunakea Spectroscopic Explorer (MSE): the prime focus subsystems: requirements and interfaces

Cited by 9 publications

References 6 publications

Maunakea Spectroscopic Explorer exposure time calculator for end-to-end simulator: to optimizing spectrograph design and observing simulation

Maunakea Spectroscopic Explorer exposure time calculator for end-to-end simulator: to optimizing spectrograph design and observing simulation

Maunakea spectroscopic explorer advancing from conceptual design

Expected observing efficiency of the Maunakea Spectroscopic Explorer (MSE)

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