Data Set Overview
  =================
    This data set contains data that will help determine the
    mineralogy of Martian rocks and soils, determine the
    thermophysical properties of soil patches, and determine the
    temperature profile, dust opacity, water-ice opacity, and water
    vapor abundance in the lower boundary layer of the Martian
    atmosphere.  The Mini-TES calibrated radiance is the primary data
    product for the MER mission.  These data will be converted to
    effective emissivity and surface temperature by fitting a Planck
    blackbody function to the calibrated spectrum.  The emissivity
    spectra will be converted to mineral abundance using a linear
    deconvolution model and a matrix of mineral spectra from the ASU
    Mineral Library and other sources.  The derived surface
    temperature will be used to produce thermal inertia images via a
    thermal model, using data from multiple times of day where
    possible Attempts will be made to coordinate these diurnal
    observations with the times of TES or THEMIS direct overflights,
    providing simultaneous temperature observations that can be
    extended to broader regions surrounding the rovers.
 
    The Mini-TES will also view upward at angles up to 30 degrees
    above the horizon to provide high-resolution temperature profiles
    of the Martian boundary layer.  This upward-viewing mode will
    yield high-resolution temperature profiles through the bottom
    few km of the atmosphere using temperatures retrieved from the
    wings of the 15-mm CO2 band.  This lowest region of the
    atmosphere has been difficult to measure on Mars because of the
    nature of the weighting functions as seen from orbit, and because
    of the difficulty of determining surface contributions to
    radiance.
 
    Atmospheric water abundance will be obtained by vertical and
    horizontal viewing of rotational H2O lines.  Separate
    measurements of water near the ground will be obtained by viewing
    distant surface obstacles.  The broad water-ice feature centered
    near 800 cm^-1 will allow monitoring of ground ice hazes.
    Together, these measurements will illuminate the behavior of
    water in lower atmosphere and of water transport between the
    atmosphere and surface.  Atmospheric dust abundance will be
    obtained using the redundant temperature information in both
    sides of the 15 mm CO2 band, together with differential
    absorption across the dust band in that region.
 
 
  Processing
  ==========
    The Mini-TES data products comply with NASA processing level
    standards.  All Mini-TES products are spectral image QUBEs
    derived from the previous level product.
 
    RDRs, BTRs, and EMRs will be produced in succession by the
    Mini-TES Team and placed into the OSS for distribution.  If a
    data product needs to be regenerated for any reason, the original
    version will be overwritten with the new version.  The new
    version may have a version number revision in the file name and
    will contain updates to keyword values and History objects within
    the header.
 
 
  Data
  ====
    Each Mini-TES data product consists of a single file of header
    objects attached to a spectral cube.  There are 4 fundamental
    parts of a data product:
 
    1) an attached PDS label in ASCII format, composed of
       keyword-value pairs
 
    2) a History object, describing the processing history that the data
       product has gone through; this ASCII object is a set of ODL
       statements, similar to the PDS keyword-value pairs
 
    3) a table of binary, fixed-length records (available in EDRs only);
       table records are the internal calibration spectra and their
       associated telemetry values
 
    4) a spectral cube, containing either interferogram data or radiance
       spectra and organized by azimuth and elevation with housekeeping
       and telemetry values attached as suffix backplanes
 
    The size of a data product will vary from sequence to sequence
    depending upon the size of the image commanded and the processing
    level completed.  The average expected size of the data in an EDR
    from a 2-hour panoramic scan will be approximately 1.7MB.
 
 
  Software
  ========
    ASU has provided data processing software, called
    'calibrate_qube', which converts EDR data into calibrated RDR
    data and the successive higher level data products: BTR and EDR.
    If necessary, interferogram data are converted via FFT into raw
    radiance spectra.  Raw radiometric data is calibrated using
    available calibration target observations, both internal and
    external, and the known Mini-TES instrument response function as
    described in 'The Mini-TES Data Processing Guide'.  The
    calibration software is executed on the ASU hyper-spectral
    analysis system called Davinci.
 
 
  Media/Format
  ============
    The data set will initially be delivered and kept online.  Upon
    Mission completion, the Mini-TES EMRs will be delivered to PDS on
    DVD.

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