PDS_VERSION_ID       = PDS3
LABEL_REVISION_NOTE  = "2010-01-07 GEO:Slavney Created;
                        2010-05-11 MMTO:Vilas Revised"
RECORD_TYPE          = STREAM

OBJECT               = INSTRUMENT
  INSTRUMENT_HOST_ID = "MMTO"
  INSTRUMENT_ID      = "CLIO"

  OBJECT             = INSTRUMENT_INFORMATION
    INSTRUMENT_NAME  = "CLIO"
    INSTRUMENT_TYPE  = "CAMERA"
    INSTRUMENT_DESC  = "

  Instrument Overview
  =================== 
    This file contains a brief statement of the characteristics of the Clio
    imager and spectrograph.  For details, the reader is referred to Freed
    et al., 2004.
    
  Scientific Objectives
  =====================
    High-speed infrared spectra of the LCROSS observing site.
    
  Calibration
  ===========
    Data are processed to remove a manufactured 'bias' frame, and to correct
    for nonuniformities due to variations in the gain settings among the
    four Clio readout amplifiers.  For details, the reader is referred to
    Kenworthy and Hinz, 2010.
    
  Operational Considerations
  ==========================
    The instrument is operated manually through a GUI control.  The data
    acquisition software was a FITS saver program written for Clio.  
    
  Detector
  ========    
    The Clio camera and spectrograph incorporates an InSb 9809 ROIC 256 x
    320 array of 30-micron pixels. These pixels were not binned during the
    LCROSS observations.  The detector reads out using 4 amplifiers,
    providing a readout rate of 400 kHz.  Readout noise is ~ 350e-.  The
    camera has a 12 arcsecond x 16 arcsecond field of view.  Further
    information can be found in Freed et al., 2004.
    
  Filters
  =======
    The camera used L' filter imaging to place the 10 arcsecond slit on the
    lunar surface, and a low-resolution direct vision prism with the 10
    arcsecond slit to produce spectra from ~ 2.5 - 4.5 microns.  Due to the
    optical nature of the prism, the resolving power is not linear with
    respect to wavelength, thus resolution will vary with wavelength.  The
    filter and prism are internal to the Clio instrument.
    
  Optics
  ======
    None.

  Location
  ========
    Attached externally to the f/15 secondary natural guide star top box of
    the MMT Observatory.
    
  Operational mode
  ================
    The detector reads out using 4 amplifiers, providing a readout rate of
    400 kHz.
  "
  END_OBJECT         = INSTRUMENT_INFORMATION
  
  
  OBJECT             = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID = FREEDETAL2004
  END_OBJECT         = INSTRUMENT_REFERENCE_INFO
  
  OBJECT             = INSTRUMENT_REFERENCE_INFO
    REFERENCE_KEY_ID = "KENWORTHY&HINZ2010"
  END_OBJECT         = INSTRUMENT_REFERENCE_INFO
  
END_OBJECT           = INSTRUMENT
END