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    SPICAM on Mars Express: Observing modes and overview of UV spectrometer data and scientific results

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    Authors
    Bertaux, J.-L.
    Korablev, O.
    Perrier, S.
    Quémerais, E.
    Montmessin, F.
    Leblanc, F.
    Lebonnois, S.
    Rannou, P.
    Lefèvre, F.
    Forget, F.
    Fedorova, A.
    Dimarellis, E.
    Reberac, A.
    Fonteyn, D.
    Chaufray, J.Y.
    Guibert, S.
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    Discipline
    Physical sciences
    Subject
    calibration
    data processing
    Mars
    optimization
    ozone
    planetary atmosphere
    spectrometer
    ultraviolet radiation
    Audience
    Scientific
    Date
    2006
    Metadata
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    Description
    This paper is intended as an introduction to several companion papers describing the results obtained by the SPICAM instrument on board Mars Express orbiter. SPICAM is a lightweight (4.7 kg) UV-IR dual spectrometer dedicated primarily to the study of the atmosphere of Mars. The SPICAM IR spectrometer and its results are described in another companion paper. SPICAM is the first instrument to perform stellar occultations at Mars, and its UV imaging spectrometer (118-320 nm, resolution ∼1.5 nm, intensified CCD detector) was designed primarily to obtain atmospheric vertical profiles by stellar occultation. The wavelength range was dictated by the strong UV absorption Of CO2 (λ < 200 nm) and the strong Hartley ozone absorption (220-280 nm). The UV spectrometer is described in some detail. The capacity to orient the spacecraft allows a great versatility of observation modes: nadir and limb viewing (both day and night) and solar and stellar occultations, which are briefly described. The absolute calibration is derived from the observation of UV-rich stars. An overview of a number of scientific results is presented, already published or found in more detail as companion papers in this special section. SPICAM UV findings are relevant to CO2, ozone, dust, cloud vertical profiles, the ozone column, dayglow, and nightglow. This paper is particularly intended to provide the incentive for SPICAM data exploitation, available to the whole scientific community in the ESA data archive, and to help the SPICAM data users to better understand the instrument and the various data collection modes, for an optimized scientific return.
    Citation
    Bertaux, J.-L.; Korablev, O.; Perrier, S.; Quémerais, E.; Montmessin, F.; Leblanc, F.; Lebonnois, S.; Rannou, P.; Lefèvre, F.; Forget, F.; Fedorova, A.; Dimarellis, E.; Reberac, A.; Fonteyn, D.; Chaufray, J.Y.; Guibert, S. (2006). SPICAM on Mars Express: Observing modes and overview of UV spectrometer data and scientific results. , Journal of Geophysical Research E: Planets, Vol. 111, Issue 10, E10S90, DOI: 10.1029/2006JE002690.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4507
    doi: http://dx.doi.org/10.1029/2006JE002690
    scopus: 2-s2.0-33845681635
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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