PDS_VERSION_ID                  = PDS3                                       
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "FOX&YELLE1997"                            
  REFERENCE_DESC                = "                                          
    Fox, J.L., and R.V. Yelle, Hydrocarbon ions in the ionsphere of Titan,   
    Geophys. Res. Lett., 24, 2179, 1997."                                    
END_OBJECT                      = REFERENCE                                  
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "KELLERETAL1998"                           
  REFERENCE_DESC                = "                                          
    Keller, C.N., V.G. Anicich, T.E. Cravens, Model of Titans ionosphere     
    with detailed hydrocarbon ion chemistry, Planet. Space Sci., 46, 9-10,   
    1157-1174, 1998."                                                        
END_OBJECT                      = REFERENCE                                  
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "KASPRZAKETAL1996"                         
  REFERENCE_DESC                = "                                          
    Kasprzak, W., H. Niemann, D. Harpold, J. Richards, H. Manning, and 2     
    others, Cassini orbiter ion and neutral mass spectrometer instrument,    
    Proc. SPIE, 2803, 129-140, 1996."                                        
END_OBJECT                      = REFERENCE                                  
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "MAHAFFY&LAI1990"                          
  REFERENCE_DESC                = "                                          
    Mahaffy, P.R., and K. Lai, An electrostatic quadrupole deflector for     
    mass spectrometer applications, J. Vacuum Sci. & Tech. A, 8, 4,          
    3244-3246, 1990."                                                        
END_OBJECT                      = REFERENCE                                  
                                                                             
OBJECT                = REFERENCE                                            
   REFERENCE_KEY_ID    = "SEIDELMANN1992"                                    
   REFERENCE_DESC      = "                                                   
     Seidelmann, P.K. (ed.) (1992), Explanatory Supplement to the            
     Astronomical Almanac, University Science Books, Sausalito, CA, 1992."   
END_OBJECT            = REFERENCE                                            
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "STROBELETAL1992"                          
  REFERENCE_DESC                = "                                          
    Strobel, D.F., M.E. Summers, and X. Zhu, Titan's upper atmostphere -     
    Structure and ultraviolet emissions, Icarus, 100, 2, 512-526, 1992."     
END_OBJECT                      = REFERENCE                                  
                                                                             
OBJECT                          = REFERENCE                                  
  REFERENCE_KEY_ID              = "WAITEETAL2004"                            
  REFERENCE_DESC                = "                                          
    Waite Jr., J.H., W.S. Lewis, W.T. Kasprzak, V.G. Anicich, B.P. Block,    
    and 11 others, The Cassini Ion and Neutral Mass Spectrometer (INMS)      
    Investigation, Space Sci. Rev., 114, 113-231, 2004."                     
END_OBJECT                      = REFERENCE                                  
                                                                             
END