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NOMAD, a Spectrometer Suite for Nadir and Solar Occultation Observations on the Exomars Trace Gas Orbiter

Ann Carine Vandaele, J. J. López‐Moreno, Manish Patel, G. Bellucci, Frank Daerden, R. Drummond, Eddy Neefs, Séverine Robert, Julio Gómez

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Abstract

NOMAD, the “Nadir and Occultation for MArs Discovery” spectrometer suite has been selected by ESA and NASA to be part of the payload of the ExoMars Trace Gas Orbiter mission 2016. This instrument suite will conduct a spectroscopic survey of Mars’ atmosphere in the UV, visible and IR regions covering the 0.2-0.65 and 2.2-4.3 μm spectral ranges. NOMAD’s observation modes include solar occultation, nadir and limb observations. Its spectral resolution surpasses previous surveys in the infrared by more than one order of magnitude. The nadir mode will provide detailed trace gas mapping.

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What this paper is about

NOMAD, the “Nadir and Occultation for MArs Discovery” spectrometer suite has been selected by ESA and NASA to be part of the payload of the ExoMars Trace Gas Orbiter mission 2016. This instrument suite will conduct a spectroscopic survey of Mars’ atmosphere in the UV, visible and IR regions covering the 0.2-0.65 and 2.2-4.3 μm spectral ranges. NOMAD’s observation modes include solar occultation, nadir and limb observations. Its spectral resolution surpasses previous surveys in the infrared by more than one order of magnitude. The nadir mode will provide detailed trace gas mapping.

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Available abstract

NOMAD, the “Nadir and Occultation for MArs Discovery” spectrometer suite has been selected by ESA and NASA to be part of the payload of the ExoMars Trace Gas Orbiter mission 2016. This instrument suite will conduct a spectroscopic survey of Mars’ atmosphere in the UV, visible and IR regions covering the 0.2-0.65 and 2.2-4.3 μm spectral ranges. NOMAD’s observation modes include solar occultation, nadir and limb observations. Its spectral resolution surpasses previous surveys in the infrared by more than one order of magnitude. The nadir mode will provide detailed trace gas mapping.

Key concepts: Nadir, Occultation, Orbiter, Trace gas, Atmosphere of Mars, Remote sensing, Mars Exploration Program, Spectrometer

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