PDS_VERSION_ID                = PDS3                                          
/* label standards identifiers PDS Version 3.8 */                             
                                                                              
/* File Characteristics */                                                    
RECORD_TYPE                   = FIXED_LENGTH                                  
RECORD_BYTES                  = 61                                            
FILE_RECORDS                  = 114                                           
MD5_CHECKSUM                  = "724e33e21bf0bb8b8132c9f963141fcd"            
                                                                              
/* Pointers to Data Objects */                                                
^TABLE                        = "GRD_FAST_NEUTRON_RESIDUAL_MAP.TAB"           
PRODUCER_FULL_NAME            = "D. J. Lawrence"                              
PRODUCER_INSTITUTION_NAME     = "JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS     
LABORATORY"                                                                   
                                                                              
/* 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-FAST-RESIDUAL-V1.0"     
DATA_SET_NAME = "DAWN GRAND MAP VESTA FAST NEUTRON RESIDUAL V1.0"             
PRODUCT_ID                    = "GRD_FAST_NEUTRON_RESIDUAL_MAP"               
PRODUCT_TYPE                  = "DATA"                                        
PRODUCT_VERSION_ID            = "1.0"                                         
START_TIME                    = 2011-12-09T00:00:00                           
STOP_TIME                     = 2012-05-01T01:59:29                           
SPACECRAFT_CLOCK_START_COUNT  = "1/0376660866.079"                            
SPACECRAFT_CLOCK_STOP_COUNT   = "1/0389109635.177"                            
PRODUCT_CREATION_TIME         = 2013-07-30T19:30:43                           
                                                                              
/* Data Object Definitions */                                                 
OBJECT                        = TABLE                                         
 ROWS                         = 114                                           
 ROW_BYTES                    = 61                                            
 COLUMNS                      = 8                                             
 INTERCHANGE_FORMAT           = ASCII                                         
 DESCRIPTION                  ="                                              
          These data are maps of fast neutron residual count rates            
          from the GRaND plus Z BLP sensor.  The nominal fast neutron count   
          rates were detrended using the GRaND epithermal neutron map to      
          produced this residual map.  The residual map is related to the     
          average atomic mass on Vesta.  Details of the map and data reduction
          are described in Lawrence et al., Constraints on Vesta's Elemental  
          Composition: Fast Neutron Measurements by Dawn's Gamma Ray and      
          Neutron Detector, Meteoritics and Planetary Science, in press, 2013.
  "                                                                           
                                                                              
 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                        = "LAT_MIN"                                     
  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                        = "LAT_MAX"                                     
  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 pixel in latitude.                                               
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "LON_MIN"                                     
  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                        = "LON_MAX"                                     
  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 pixel in longitude.                                              
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
 OBJECT                       = COLUMN                                        
  NAME                        = "FAST_NEUTRON_COUNTING_RATE"                  
  DATA_TYPE                   = ASCII_REAL                                    
  UNIT                        = "counts/s"                                    
  START_BYTE                  = 53                                            
  BYTES                       = 7                                             
  FORMAT                      = "F7.3"                                        
  DESCRIPTION                 = "                                             
    Residual fast neutron counting rate (counts/s).                           
   "                                                                          
 END_OBJECT                   = COLUMN                                        
                                                                              
END_OBJECT                    = TABLE                                         
END