Optical and radiometric models of the NOMAD instrument part II: the infrared channels - SO and LNO

Thomas, I. R.; Vandaele, A.C.; Robert, S.; Neefs, E.; Drummond, R.; Daerden, F.; Delanoye, S.; Ristic, B.; Berkenbosch, S.; Clairquin, R.; Maes, J.; Bonnewijn, S.; Depiesse, C.; Mahieux, A.; Trompet, L.; Neary, L.; Willame, Y.; Wilquet, V.; Nevejans, D.; Aballea, L.; Moelans, W.; De Vos, L.; Lesschaeve, S.; Van Vooren, N.; Lopez-Moreno, J.-J.; Patel, M.R.; Bellucci, G. and the NOMAD Team (2016). Optical and radiometric models of the NOMAD instrument part II: the infrared channels - SO and LNO. Optics Express, 24(4) pp. 3790–3805.

DOI: https://doi.org/10.1364/OE.24.003790

Abstract

NOMAD is a suite of three spectrometers that will be launched in 2016 as part of the joint ESA-Roscosmos ExoMars Trace Gas Orbiter mission. The instrument contains three channels that cover the IR and UV spectral ranges and can perform solar occultation, nadir and limb observations, to detect and map a wide variety of Martian atmospheric gases and trace species. Part I of this work described the models of the UVIS channel; in this second part, we present the optical models representing the two IR channels, SO (Solar Occultation) and LNO (Limb, Nadir and Occultation), and use them to determine signal to noise ratios (SNRs) for many expected observational cases. In solar occultation mode, both the SO and LNO channel exhibit very high SNRs >5000. SNRs of around 100 were found for the LNO channel in nadir mode, depending on the atmospheric conditions, Martian surface properties, and observation geometry.

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About

  • Item ORO ID
  • 45394
  • Item Type
  • Journal Item
  • ISSN
  • 1094-4087
  • Project Funding Details
  • Funded Project NameProject IDFunding Body
    Support for Science Co-I's on the ExoMars Trace Gas Orbiter Instruments. (SM-10-074-MP)ST/I003061/1STFC (Science & Technology Facilities Council)
    UPWARDS: Understanding Planet Mars With Advanced Remote-sensing Datasets and Synergistic Studies633127EC HORIZON 2020
    Case for Support for Modelling and Data Assimilation Science Co-I on the ExoMars Trace Gas Orbiter. (SP-10-073-SL)ST/I003096/1STFC (Science & Technology Facilities Council)
  • Extra Information
  • Stephen Lewis is part of the NOMAD Team.
  • Academic Unit or School
  • Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
    Faculty of Science, Technology, Engineering and Mathematics (STEM)
  • Research Group
  • Space
  • Copyright Holders
  • © 2016 Optical Society of America
  • Depositing User
  • Manish Patel

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