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SPICAM IR acousto-optic spectrometer experiment on Mars Express

dc.contributor.authorKorablev, O.
dc.contributor.authorBertaux, J.-L.
dc.contributor.authorFedorova, A.
dc.contributor.authorFonteyn, D.
dc.contributor.authorStepanov, A.
dc.contributor.authorKalinnikov, Y.
dc.contributor.authorKiselev, A.
dc.contributor.authorGrigoriev, A.
dc.contributor.authorJegoulev, V.
dc.contributor.authorPerrier, S.
dc.contributor.authorDimarellis, E.
dc.contributor.authorDubois, J.P.
dc.contributor.authorReberac, A.
dc.contributor.authorVan Ransbeeck, E.
dc.contributor.authorGondet, B.
dc.contributor.authorMontmessin, F.
dc.contributor.authorRodin, A.
dc.date2006
dc.date.accessioned2016-11-22T11:57:30Z
dc.date.available2016-11-22T11:57:30Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/4506
dc.descriptionThe 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.
dc.languageeng
dc.titleSPICAM IR acousto-optic spectrometer experiment on Mars Express
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeaerosol
dc.subject.freecalibration
dc.subject.freecarbon dioxide
dc.subject.freeexperimental study
dc.subject.freelight
dc.subject.freeMars
dc.subject.freeMartian atmosphere
dc.subject.freemeasurement method
dc.subject.freeoptical depth
dc.subject.freespectrometer
dc.subject.freevertical profile
dc.subject.freewater vapor
dc.source.titleJournal of Geophysical Research E: Planets
dc.source.volume111
dc.source.issue9
dc.source.pageE09S03
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2006JE002696
dc.identifier.scopus2-s2.0-33747710561


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