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NOMAD, an Integrated Suite of Three Spectrometers for the ExoMars Trace Gas Mission: Technical Description, Science Objectives and Expected Performance

Ann Carine Vandaele 1 Josè Juan Lopez-Moreno 2 Manish R. Patel 3, 4 G. Bellucci 5 F. Daerden 1 B. Ristic 1 S. Robert 1 R. Thomas 1 V. Wilquet 1 M. Allen 6 G. Alonso-Rodrigo 7 F. Altieri 5 S. Aoki 1 D. Bolsée 1 T. Clancy 8 E. Cloutis 9 C. Depiesse 1 R. Drummond 1 Anna A. Fedorova 10 V. Formisano 5 B. Funke 2 F. Gonzalez-Galindo 2 A. Geminale 5 J.-C. Gerard 11 M. Giuranna 5 L. Hetey 1 N. Ignatiev 10 J. Kaminski 12 Ö. Karatekin 13 Y. Kasaba 14 M. Leese 3 Franck Lefèvre 15 S. R. Lewis 3 M. López-Puertas 2 M. Lopez-Valverde 2 A. Mahieux 1, 16, 5 J. Mason 3 J. Mcconnell 17 M. Mumma 18 L. Neary 1 E. Neefs 1 E. Renotte 19 J. Rodriguez-Gomez 2 G. Sindoni 5 M. Smith 17 Arnaud Stiepen 20 A. Trokhimovsky 10 J. Vander Auwera 21 G. Villanueva 18, 22 S. Viscardy 1 J. Whiteway 17 Y. Willame 1 M. Wolff 8 
Abstract : The NOMAD (“Nadir and Occultation for MArs Discovery”) spectrometer suite on board the ExoMars Trace Gas Orbiter (TGO) has been designed to investigate the composition of Mars’ atmosphere, with a particular focus on trace gases, clouds and dust. The detection sensitivity for trace gases is considerably improved compared to previous Mars missions, compliant with the science objectives of the TGO mission. This will allow for a major leap in our knowledge and understanding of the Martian atmospheric composition and the related physical and chemical processes. The instrument is a combination of three spectrometers, covering a spectral range from the UV to the mid-IR, and can perform solar occultation, nadir and limb observations. In this paper, we present the science objectives of the instrument and explain the technical principles of the three spectrometers. We also discuss the expected performance of the instrument in terms of spatial and temporal coverage and detection sensitivity.
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Submitted on : Saturday, February 13, 2021 - 5:29:59 PM
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Ann Carine Vandaele, Josè Juan Lopez-Moreno, Manish R. Patel, G. Bellucci, F. Daerden, et al.. NOMAD, an Integrated Suite of Three Spectrometers for the ExoMars Trace Gas Mission: Technical Description, Science Objectives and Expected Performance. Space Science Reviews, 2018, 214 (5), 80. ⟨10.1007/s11214-018-0517-2⟩. ⟨insu-01818686⟩



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