PDS_VERSION_ID                     = PDS3                                     
RECORD_TYPE                        = "FIXED_LENGTH"                           
                                                                              
OBJECT     = REFERENCE                                                        
  REFERENCE_KEY_ID     = "BURROWSETAL1991"                                    
  REFERENCE_DESC       = "Burrows, C.J., J.A. Holtzman, S.M. Faber, P.Y. Bely,
        H. Hasan, and two others, 'The Imaging Performance of the Hubble Space
        Telescope', Ap. J. Lett., 369, L21- L25, 1991.  "                     
END_OBJECT = REFERENCE                                                        
                                                                              
OBJECT     = REFERENCE                                                        
  REFERENCE_KEY_ID     = "GONZAGAETAL2005"                                    
  REFERENCE_DESC       = "Gonzaga, S., K. Sembach, J. Biretta, R. Bohlin, M.  
        Chiaberge, and 19 others, ACS Instrument Handbook, Version 6.0,       
        Baltimore: STScI, 2005.  "                                            
END_OBJECT = REFERENCE                                                        
                                                                              
OBJECT     = REFERENCE                                                        
  REFERENCE_KEY_ID     = "LIETAL2006B"                                        
  REFERENCE_DESC       = "Li, J.-Y., McFadden, L. A., Parker, J. Wm., Young,  
        E. F., Stern, S. A., and 3 others, Photometric analysis of 1 Ceres and
        surface mapping from HST observations, Icarus 182, 143-160, 2006."    
END_OBJECT = REFERENCE                                                        
                                                                              
OBJECT     = REFERENCE                                                        
  REFERENCE_KEY_ID     = "PAVLOVSKYETAL2005"                                  
  REFERENCE_DESC       = "Pavlovsky, C., Koekemoer, A., Mack, J., Gilliland,  
        R., Riess, A., and 21 others, ACS Data Handbook, Version 4.0, STScI,  
        Baltimore, 2005."                                                     
END_OBJECT = REFERENCE                                                        
                                                                              
OBJECT     = REFERENCE                                                        
  REFERENCE_KEY_ID     = "THOMASETAL2005B"                                    
  REFERENCE_DESC       = "Thomas, P. C., Parker, J. Wm., McFadden, L. A.,     
        Russell, C. T., Stern, S. A., and 2 others, Differentiation of the    
        asteroid Ceres as revealed by its shape, Nature 437, 224, 2005"       
END_OBJECT = REFERENCE                                                        
                                                                              
END