PDS_VERSION_ID                = PDS3                                          
/* label standards identifiers PDS Version 3.8 */                             
                                                                              
/* File Characteristics */                                                    
RECORD_TYPE                   = FIXED_LENGTH                                  
RECORD_BYTES                  = 75                                            
FILE_RECORDS                  = 204                                           
MD5_CHECKSUM                  = "d9deb5c6bd26337f2cf0e650da23dadd"            
                                                                              
/* Pointers to Data Objects */                                                
^TABLE                        = "GRD_NEUTRON_ABSORPTION_MAP.TAB"              
PRODUCER_FULL_NAME            = "T. H. Prettyman"                             
PRODUCER_INSTITUTION_NAME     = "PLANETARY SCIENCE INSTITUTE"                 
                                                                              
/* Identification Data Elements */                                            
MISSION_NAME                  = "DAWN MISSION TO VESTA AND CERES"             
MISSION_ID                    = "DAWN"                                        
MISSION_PHASE_NAME            = "VESTA SCIENCE LAMO (VSL)"                    
TARGET_NAME                   = "4 VESTA"                                     
TARGET_TYPE                   = "ASTEROID"                                    
INSTRUMENT_HOST_NAME          = "DAWN"                                        
INSTRUMENT_HOST_ID            = "DAWN"                                        
INSTRUMENT_ID                 = "GRAND"                                       
INSTRUMENT_NAME               = "GAMMA-RAY AND NEUTRON DETECTOR"              
DATA_SET_ID                   = "DAWN-A-GRAND-5-VESTA-ABSORPTION-V1.0"        
DATA_SET_NAME = "DAWN GRAND MAP VESTA NEUTRON ABSORPTION V1.0"                
PRODUCT_ID                    = "GRD_NEUTRON_ABSORPTION_MAP"                  
PRODUCT_TYPE                  = "DATA"                                        
PRODUCT_VERSION_ID            = "1.0"                                         
START_TIME                    = 2011-12-08T01:18:52                           
STOP_TIME                     = 2012-01-14T00:19:52                           
SPACECRAFT_CLOCK_START_COUNT  = "0376579234.000"                              
SPACECRAFT_CLOCK_STOP_COUNT   = "0379772494.000"                              
PRODUCT_CREATION_TIME         = 2013-08-01T23:21:44                           
                                                                              
/* Data Object Definitions */                                                 
OBJECT                        = TABLE                                         
 ROWS                         = 204                                           
 ROW_BYTES                    = 75                                            
 COLUMNS                      = 9                                             
 INTERCHANGE_FORMAT           = ASCII                                         
 DESCRIPTION                  ="Global map of the compositional parameter     
    DCP, which varies linearly with the thermal neutron absorption cross      
    section of Vesta's regolith, determined from thermal and epithermal       
    neutron counting data acquired by the NASA Dawn mission's Gamma           
    Ray and Neutron Detector from low altitude [PRETTYMANETAL2013]. An        
    equation to convert DCP to absoption units is provided in the             
    dataset catalog.                                                          
  "                                                                           
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "PIXEL_INDEX"                                 
  DATA_TYPE                   = ASCII_INTEGER                                 
  START_BYTE                  = 1                                             
  BYTES                       = 10                                            
  FORMAT                      = "I10"                                         
  DESCRIPTION                 = "                                             
    Pixel index. The map covers -90 to 90 degrees latitude and -180 to 180    
    degrees east longitude in the Claudia Double Prime coordinate system.     
    Pixels are indexed from west to east and from south to north, starting    
    with 0.                                                                   
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "MIN_LAT"                                     
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 11                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Pixel latitude southernmost boundary.                                     
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "MAX_LAT"                                     
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 18                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Pixel latitude northernmost boundary.                                     
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "DELTA_LAT"                                   
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 25                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Width of the pixel in latitude.                                           
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "MIN_LON"                                     
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 32                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Pixel east longitude westernmost boundary.                                
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "MAX_LON"                                     
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 39                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Pixel east longitude easternmost boundary.                                
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "DELTA_LON"                                   
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "deg"                                         
  START_BYTE                  = 46                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.1"                                        
  DESCRIPTION                 = "                                             
    Width of the pixel in longitude.                                          
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "DCP"                                         
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "unitless"                                    
  START_BYTE                  = 53                                            
  BYTES                       = 11                                            
  FORMAT                      = "E11.2"                                       
  DESCRIPTION                 = "                                             
    DCP is a unitless quanity that varies linearly with the macroscopic       
    thermal neutron absorption cross section of the regolith.                 
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "SIGMA_DCP"                                   
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "unitless"                                    
  START_BYTE                  = 64                                            
  BYTES                       = 10                                            
  FORMAT                      = "E10.1"                                       
  DESCRIPTION                 = "                                             
    1-sigma statistical uncertainty in DCP.                                   
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
END_OBJECT                    = TABLE                                         
END