PDS_VERSION_ID      = PDS3                                                    
LABEL_REVISION_NOTE = "                                                       
  03 Apr 2002, c. neese: Begin label revision history.                        
  18 Jan 2003, A.C.Raugh:  Lien-resolution editing                            
  10 Dec 2003, acr: Minor editing to remove problematic keywords              
  "                                                                           
                                                                              
DATA_SET_LOCAL_ID = "DENSITY"                                                 
/* DATA_SET_UPDATE_PERIOD         = 1.0  */                                   
                                                                              
OBJECT     = DATA_SET                                                         
  DATA_SET_ID       = "EAR-A-5-DDR-ASTEROID-DENSITIES-V1.0"                   
                                                                              
  OBJECT     = DATA_SET_INFORMATION                                           
    DATA_SET_NAME                  = "ASTEROID DENSITIES V1.0"                
    DATA_SET_TERSE_DESC            = "A compilation of asteroid masses,       
      diameters, and bulk densities, with best current estimates"             
    ARCHIVE_STATUS                 = "LOCALLY_ARCHIVED"                       
    DATA_SET_COLLECTION_MEMBER_FLG = "N"                                      
    DATA_OBJECT_TYPE               = "TABLE"                                  
    START_TIME                     = 1966                                     
    STOP_TIME                      = 2001                                     
    DATA_SET_RELEASE_DATE          = 2002-05-10  /* Peer Review Date */       
    PRODUCER_FULL_NAME             = "CAROL NEESE"                            
    DETAILED_CATALOG_FLAG          = "N"                                      
    DATA_SET_DESC                  = "                                        
                                                                              
      Data Set Overview                                                       
      =================                                                       
                                                                              
      This data set contains a tabulation of asteroid masses, diameters,      
      and bulk densities compiled by D. T. Britt and published in Table       
      1 of Britt, et al. (2002) [BRITTETAL2002] in the 'Asteroids III'        
      volume.                                                                 
                                                                              
      Modification History                                                    
      ====================                                                    
      This data set was introduced for the first time in May 2002.            
                                                                              
      Parameters                                                              
      ==========                                                              
                                                                              
      Asteroid mass, diameter, and bulk density determinations are compiled   
      from the published literature.  The first two (or in some cases one)    
      lines for each asteroid represent the current best estimate of mass     
      and volume.  The subsequent lines give previous mass and volume         
      determinations where they exist.                                        
                                                                              
      Data                                                                    
      ====                                                                    
      This data set includes two data tables.  The first, 'density.tab',      
      tabulates the parameters listed above for all known published values.   
      The first entry for each asteroid in this file is the best estimate     
      for the parameters based on current available knowledge.  These best    
      estimates are also given separately in the file 'densbest.tab'.  The    
      full references for the cited papers for each entry are listed in       
      'densrefs.tab'.                                                         
      "                                                                       
    CONFIDENCE_LEVEL_NOTE          = "                                        
                                                                              
      Confidence Level Overview                                               
      =========================                                               
      The confidence level of each data value reported is reflected in the    
      uncertainty value in the same entry.  Further information about the     
      observations can be obtained by consulting the original reference for   
      each entry.                                                             
                                                                              
      Review                                                                  
      ======                                                                  
      This data set underwent external peer review on May 10, 2002.           
                                                                              
      Data Coverage and Quality                                               
      =========================                                               
      This data set represents a project to collect asteroid density          
      values from various sources into a single file for the convenience      
      of researchers.  It is intended to include all useful published         
      values of asteroid densities.  Future updates will add additional       
      determinations as they become available.                                
      "                                                                       
                                                                              
  END_OBJECT = DATA_SET_INFORMATION                                           
                                                                              
  OBJECT     = DATA_SET_HOST                                                  
    INSTRUMENT_HOST_ID = "PUBLIT"                                             
    INSTRUMENT_ID      = "COMPIL"                                             
  END_OBJECT = DATA_SET_HOST                                                  
                                                                              
  OBJECT     = DATA_SET_REFERENCE_INFORMATION                                 
    REFERENCE_KEY_ID = "BRITTETAL2002"                                        
  END_OBJECT = DATA_SET_REFERENCE_INFORMATION                                 
                                                                              
  OBJECT     = DATA_SET_TARGET                                                
    TARGET_NAME = "ASTEROID"                                                  
  END_OBJECT = DATA_SET_TARGET                                                
                                                                              
END_OBJECT = DATA_SET                                                         
                                                                              
END