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    SPICAM IR acousto-optic spectrometer experiment on Mars Express

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    Authors
    Korablev, O.
    Bertaux, J.-L.
    Fedorova, A.
    Fonteyn, D.
    Stepanov, A.
    Kalinnikov, Y.
    Kiselev, A.
    Grigoriev, A.
    Jegoulev, V.
    Perrier, S.
    Dimarellis, E.
    Dubois, J.P.
    Reberac, A.
    Van Ransbeeck, E.
    Gondet, B.
    Montmessin, F.
    Rodin, A.
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    Discipline
    Physical sciences
    Subject
    aerosol
    calibration
    carbon dioxide
    experimental study
    light
    Mars
    Martian atmosphere
    measurement method
    optical depth
    spectrometer
    vertical profile
    water vapor
    Audience
    Scientific
    Date
    2006
    Metadata
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    Description
    The SPICAM IR spectrometer on Mars Express mission (1.0-1.7 μm, spectral resolution 0.5-1.2 nm) is dedicated primarily to nadir measurements of H 2O abundance. It is tine of two channels of SPICAM UV-IR instrument. In this spectrometer we applied for the first time in planetary research the technology of an acousto-optic tunable filter (AOTF) that allowed unprecedented mass reduction for such an instrument: 0.75 kg. SPICAM IR is a point nadir-looking spectrometer with sequential scanning of the spectrum by the AOTF. Sun occultations are performed with a help of dedicated solar port. We describe instrumentation, calibrations, and the modes of operations of the device and discuss its in-flight performances. A brief overview of the scientific measurements includes water vapor measurements and the mapping of intensity of the O2(a1Δg) emission at 1.27 μm, described in detail in separate papers. Measurements in reflected solar light allow clear detection of H2O and CO2 ices on the surface or in the atmosphere of Mars. We discuss solar occultation measurements by SPICAM and present resulting vertical profiles of aerosol optical depth.
    Citation
    Korablev, O.; Bertaux, J.-L.; Fedorova, A.; Fonteyn, D.; Stepanov, A.; Kalinnikov, Y.; Kiselev, A.; Grigoriev, A.; Jegoulev, V.; Perrier, S.; Dimarellis, E.; Dubois, J.P.; Reberac, A.; Van Ransbeeck, E.; Gondet, B.; Montmessin, F.; Rodin, A. (2006). SPICAM IR acousto-optic spectrometer experiment on Mars Express. , Journal of Geophysical Research E: Planets, Vol. 111, Issue 9, E09S03, DOI: 10.1029/2006JE002696.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4506
    doi: http://dx.doi.org/10.1029/2006JE002696
    scopus: 2-s2.0-33747710561
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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