PDS_VERSION_ID      = PDS3                                                    
LABEL_REVISION_NOTE = "                                                       
  24 Apr 2002, A.C.Raugh: Creation                                            
  "                                                                           
                                                                              
OBJECT     = INSTRUMENT_HOST                                                  
  INSTRUMENT_HOST_ID = "MCD21"                                                
                                                                              
  OBJECT     = INSTRUMENT_HOST_INFORMATION                                    
    INSTRUMENT_HOST_NAME = "MCDONALD OBSERVATORY 2.1M TELESCOPE"              
    INSTRUMENT_HOST_TYPE = "EARTH BASED"                                      
    INSTRUMENT_HOST_DESC = "                                                  
      McDonald Observatory Otto Struve 2.1m (82in) Telescope                  
                                                                              
      The information included here was extracted from the McDonald           
      Observatory web site at:                                                
                                                                              
                http://mcdonaldobservatory.org/                               
                                                                              
      on 24 April 2002 by A.C.Raugh.                                          
                                                                              
                                                                              
      Observatory Information                                                 
      =======================                                                 
      McDonald Observatory is administered by the University of Texas         
      at Austin.  Telecsopes are located on Mt. Locke in the Davis            
      Mountains of West Texas.                                                
                                                                              
        East longitude:  -104 01.3                                            
              Latitude:   +30 40.3                                            
             Elevation:  2075 meters above sea level                          
                                                                              
                                                                              
      Telescope Information                                                   
      =====================                                                   
      Otto Struve optical telescope                                           
                                                                              
        Primary Mirror                                                        
              Diameter:  2.08m  (82 in)                                       
          Focal Length:  8.13m  (26.7 ft)                                     
               f-ratio:  3.90                                                 
           Field Angle: 63.5 arcmin                                           
           Plate Scale: 25.4 arcsec/mm                                        
                                                                              
      The telescope has two focal points:                                     
                                                                              
                            Cassegrain            Coude                       
                              f/13.7             f/22.9                       
                                                                              
        Focal Length      28.53m/96.6ft        47.70m/156.5ft                 
        f-ratio           13.65                22.9                           
        Field Angle       20 arcmin            ----                           
        Plate Scale        7.25 arcsec/mm       4.3 arcsec/mm                 
                                                                              
      The Coude focus is not presently in use.                                
      "                                                                       
                                                                              
  END_OBJECT = INSTRUMENT_HOST_INFORMATION                                    
                                                                              
  OBJECT     = INSTRUMENT_HOST_REFERENCE_INFO                                 
    REFERENCE_KEY_ID = "N/A"                                                  
  END_OBJECT = INSTRUMENT_HOST_REFERENCE_INFO                                 
                                                                              
END_OBJECT = INSTRUMENT_HOST                                                  
                                                                              
END