NOMAD spectrometer on the ExoMars trace gas orbiter mission: part 2—design, manufacturing, and testing of the ultraviolet and visible channel

Abstract

NOMAD is a spectrometer suite on board the ESA/Roscosmos ExoMars Trace Gas Orbiter, which launched in March 2016. NOMAD consists of two infrared channels and one ultraviolet and visible channel, allowing the instrument to perform observations quasi-constantly, by taking nadir measurements at the day- and night-side, and during solar occultations. Here, in part 2 of a linked study, we describe the design, manufacturing, and testing of the ultraviolet and visible spectrometer channel called UVIS. We focus upon the optical design and working principle where two telescopes are coupled to a single grating spectrometer using a selector mechanism.

NOMAD spectrometer on the ExoMars trace gas orbiter mission: part 1—design, manufacturing and testing of the infrared channels

“…SO and LNO are the infrared spectrometers which form the subject of this paper. UVIS is addressed in the companion paper to this article [5].…”

Project-based learning applied to spacecraft power systems: a long-term engineering and educational program at UPM University

“…6. The thermal control subsystem and the structure analysis of the NOMAD 5 payload for the ExoMars mission [18,19]. 7.…”

Optical and radiometric models of the NOMAD instrument part I: the UVIS channel

“…NOMAD, the "Nadir and Occultation for MArs Discovery" spectrometer suite [1][2][3] was selected as part of the payload of the ExoMars Trace Gas Orbiter mission 2016. The instrument will conduct a spectroscopic survey of the Martian atmosphere in UV, visible and IR wavelengths covering the 0.2-0.65 and 2.3-4.3 µm spectral ranges.…”

“…NOMAD (Nadir and Occultation for MArs Discovery) is one of four instruments on board the ExoMars Trace Gas Orbiter [1], scheduled for launch in January 2016 and to begin nominal science mission around Mars in late 2017. It consists of a suite of three high-resolution spectrometers [2,3] -UVIS (Ultraviolet-Visible), SO (Solar Occultation) and LNO (Limb Nadir and Occultation) -which will generate a huge data set of Martian atmospheric observations during the mission, across a wide spectral range.…”