PFS Interferograms - CERTIFIED
                                Jun 23, 2003 (Ls 208.1 MY 26) to [ongoing]





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    An Artist's concept of the Mars Express Spacecraft at Mars/ESA













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    An Example of the Resolution of the Data


    The Planetary Fourier Spectrometer (PFS) is a double pendulum Fourier Transform interferometer, with capabilities similar to the Mariner 9 IRIS experiment at thermal infrared wavelengths (250 to 1700 cm-1 or 5.5 to 45 microns), but it adds a Short Wavelength channel covering the spectral range from 1700 to 8200 cm-1 (1.2 to 5.7 microns). The spectral resolution (1.3 cm-1) is the same over the entire spectral range.
    The specific science measurements pertaining to atmospheres are:
    1. Solve the problem of the inversion of the 15 microns CO2 band
    2. Obtain the vertical temperature profile without any assumptions about ground pressure and temperature, and retrieve the dust content of the atmosphere.
    3. Complete global coverage of Mars in each season, to study seasonal variations in the global circulation
    4. Study the mixing ratio of trace gases in the Martian atmosphere

    Useful Mission Documents

    Retrieve the Data Volume

    Data