PDS_VERSION_ID      = PDS3                                                    
LABEL_REVISION_NOTE = "                                                       
   5 Nov 2002  T.L. Farnham  Creation                                         
  18 Jul 2003  A.C.Raugh     Final lien-resolution editing                    
  "                                                                           
OBJECT     = INSTRUMENT                                                       
  INSTRUMENT_ID      = "IDS"                                                  
  INSTRUMENT_HOST_ID = "MCD27M"                                               
                                                                              
  OBJECT     = INSTRUMENT_INFORMATION                                         
    INSTRUMENT_NAME = "INTENSIFIED DISSECTOR SCANNER"                         
    INSTRUMENT_TYPE = "SPECTROGRAPH"                                          
    INSTRUMENT_DESC ="                                                        
                                                                              
      Instrument Overview                                                     
      ===================                                                     
      The Intensified Dissector Scanner (IDS) instrument, formerly            
      used at the Cassegrain F/17.7 focus of the Harlan J. Smith 2.7m         
      Telescope at McDonald Observatory, was decommissioned some time         
      after March 1988 and before October 1994.  The information              
      presented below was gleande from Cochran, et al. (1992)                 
      [COCHRANETAL1992].                                                      
                                                                              
      The IDS was a dual aperture spectrograph with variable apertures        
      fixed 52 arcsec apart on an east/west line.  Computer-controlled        
      beam switching was available to alternate imaging through both          
      apertures.                                                              
      "                                                                       
                                                                              
  END_OBJECT = INSTRUMENT_INFORMATION                                         
                                                                              
  OBJECT     = INSTRUMENT_REFERENCE_INFO                                      
    REFERENCE_KEY_ID = "N/A"                                                  
  END_OBJECT = INSTRUMENT_REFERENCE_INFO                                      
                                                                              
END_OBJECT = INSTRUMENT                                                       
                                                                              
END