MCDONALD OBSERVATORY 2.7M TELESCOPE
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  Instrument Host Overview                                                    
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  McDonald Observatory Harlan J. Smith 2.7m (107in) 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                                                     
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  McDonald Observatory is administered by the University of Texas             
  at Austin.  Telescopes 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                                                       
  =====================                                                       
  Harlan J. Smith optical telescope                                           
                                                                              
    Primary Mirror                                                            
          Diameter:  2.72m  (107 in)                                          
      Focal Length: 10.68m  ( 35 ft)                                          
           f-ratio:  3.93                                                     
                                                                              
  The telescope has three focal points:                                       
                                                                              
              Cassegrain f/8.8       Cassegrain          Coude                
              Ritchey-Chretien         f/17.7           f/32.5                
                                                                              
  Focal Length    23.91m/78.4ft      47.98m/157.4ft    88.43m/290.1ft         
  f-ratio          8.8               17.65             32.54                  
  Field Angle     61.5 arcmin        31 arcmin          3 arcmin              
  Plate Scale      8.62 arcsec/mm     4.29 arcsec/mm    2.32 arcsec/mm        
                                                                              
        GROUP                        = OBSERVATORY_PARAMETERS                 
          OBSERVATORY_ID             = 'OBS445'                               
          NAME                       = 'MCDONALD OBSERVATORY'                 
          COUNTRY                    = 'USA'                                  
          ADDRESS                    = 'University of Texas;                  
                                        P.O. Box 1337;                        
                                        Fort Davis, Texas'                    
        END_GROUP                    = OBSERVATORY_PARAMETERS                 
                                                                              
        GROUP                        = TELESCOPE_PARAMETERS                   
          TELESCOPE_ID               = 'T1'                                   
          NAME                       = '2.7M TELESCOPE'                       
          APERTURE                   = 2.72 <METERS>                          
          LONGITUDE                  = -104.021561 /* -104 01 17.62 E */      
          LATITUDE                   =   30.671583 /* +30 40 17.7 */          
          ALTITUDE                   = 2075 <METERS>                          
          COORDINATE_TYPE            = 'Geodetic - North American (1927)      
  datum'                                                                      
        END_GROUP                    = TELESCOPE_PARAMETERS