PDS_VERSION_ID                    = PDS3
RECORD_TYPE                       = STREAM
LABEL_REVISION_NOTE               = "NULL"

OBJECT                            = INSTRUMENT
  INSTRUMENT_HOST_ID              = "FEXP"
  INSTRUMENT_ID                   = "SHYG"

  OBJECT                          = INSTRUMENT_INFORMATION
    INSTRUMENT_NAME               = "SPECTRAL HYGROMETER"
    INSTRUMENT_TYPE               = "HYGROMETER"
    INSTRUMENT_DESC               = "

    INSTRUMENT: SPECTRAL HYGROMETER
          HOST: FIELD EXPERIMENT
 
 
    Instrument Information
    ======================
      Instrument Id                  : SHYG
      Instrument Host Id             : FEXP
      Instrument Name                : SPECTRAL HYGROMETER
      Instrument Type                : HYGROMETER
 
 
    Instrument Description
    ======================
      Two spectral hygrometers were used simultaneously at Lunar Lake
      base camp.  Their serial numbers are SH015 and SH004.  The
      spectral hygrometers provide the ratio Rsh = L(935)/L(880),
      where L(935) is irradiance at 935 nm and L(880) is the
      irradiance at 880 nm.  The measurement is acquired by aiming
      the optics at the sun and keeping the sun's image near the
      center of a ground-glass screen while the ratio is read from
      the display.  Note that 935 nm is in the middle of an
      atmospheric water band, whereas 880 nm is not.  The principle
      of operation is that the greater the water vapor abundance, the
      lower the ratio.
 
 
    Science Objectives
    ==================
      Measure atmospheric water vapor abundance.
 
 
    Operational Considerations
    ==========================
      Not Applicable
 
 
    Calibration Description
    =======================
      Not Applicable
 
 
    Section 'SHYG'
    ==============
      Total Fovs                     : 1
 
 
      'SHYG' Section Parameter 'RADIANCE'
      -----------------------------------
        Radiance is the amount of energy per time per projected area
        per steradian.
 
        Instrument Parameter Name      : RADIANCE
        Sampling Parameter Name        : WAVELENGTH
        Minimum Sampling Parameter     : 880.000000
        Maximum Sampling Parameter     : 935.000000
        Sampling Parameter Unit        : NANOMETER
 
 
      Description
      -----------
        N/A
 
 
      Sensitivity
      -----------
        N/A"

  END_OBJECT                      = INSTRUMENT_INFORMATION

  OBJECT                          = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID              = "N/A"
  END_OBJECT                      = INSTRUMENT_REFERENCE_INFO
END_OBJECT                        = INSTRUMENT
END