PDS_VERSION_ID        = PDS3                                                  
                                                                              
RECORD_TYPE           = "FIXED_LENGTH"                                        
RECORD_BYTES          = 2880                                                  
FILE_RECORDS          = 182                                                   
                                                                              
^HEADER               = ("BOUGUER06.FIT",1)                                   
^IMAGE                = ("BOUGUER06.FIT",3)                                   
                                                                              
TARGET_NAME           = "433 EROS"                                            
INSTRUMENT_HOST_NAME  = "NEAR EARTH ASTEROID RENDEZVOUS"                      
INSTRUMENT_NAME       = "RADIO SCIENCE SUBSYSTEM"                             
DATA_SET_ID           = "NEAR-A-5-COLLECTED-MODELS-V1.0"                      
ORIGINAL_PRODUCT_ID   = "NEAR15A.BOUGUER"                                     
PRODUCT_ID            = "NEARMOD-BOUGUER06-200204"                            
PRODUCT_NAME          = "BOUGUER GRAVTITY ACCELERATION MAP, DEGREE 2-6"       
PRODUCT_RELEASE_DATE  = 2001-05-29                                            
                                                                              
START_TIME            = 2000-02-14T16:00:00                                   
STOP_TIME             = 2001-02-12T15:15:00                                   
SOFTWARE_NAME         = "GRVMAP;V1.0"                                         
PRODUCT_CREATION_TIME = 2001-05-29T00:00:00                                   
PRODUCER_ID           = "NEAR RSS TEAM"                                       
                                                                              
DESCRIPTION           = "                                                     
  This image is a simple cylindrical projection map of the Bouguer            
  radial gravity acceleration of 433 Eros, as derived from radio              
  tracking of the NEAR spacecraft.  Each pixel represents the Bouguer         
  radial gravity in milligals at a spherical reference surface of             
  radius 16.0km.                                                              
                                                                              
  The Bouguer anomaly is the observed gravity as given by the                 
  indicated gravity model minus the theoretical gravity from a                
  constant density shape model.  The shape model is strictly constant         
  density and does not include a density contrast for the regolith.           
  The density is 2.67 gm/cm^3. The shape model is a navigational              
  shape model from Miller, et al. (2002).                                     
                                                                              
  The degree one terms are not included in the Bouguer maps which             
  correspond to the center-of-mass and center-of-figure offset.  Each         
  coefficient of the theoretical gravity from shape was determined by         
  numerical integration over the surface.  This technique is valid for        
  irregular bodies.  The 3/(2n+1) multiplier for each coefficient can         
  not be used for irregular bodies as for the planetary topography            
  models.  Once the theoretical gravity coefficients are determined,          
  they are subtracted from the measured gravity coefficients to get           
  the Bouguer coefficients.  These Bouguer coefficients are then used         
  to plot the gravity to the desired degree and order.                        
                                                                              
  The Bouguer map may be from a truncation in degree of a delivered           
  solution. This particular map is computed from a truncated NEAR15A          
  solution (degree 2 to 6). The maximum degree is also included in            
  the file name.                                                              
                                                                              
  The map was produced at JPL by Alex Konopliv of the NEAR Radio              
  Science Team.                                                               
  "                                                                           
                                                                              
OBJECT     = HEADER                                                           
  HEADER_TYPE = "FITS"                                                        
  BYTES       = 5760                                                          
  RECORDS     = 2                                                             
  DESCRIPTION = "FITS standard primary data header"                           
END_OBJECT = HEADER                                                           
                                                                              
OBJECT     = IMAGE                                                            
  LINES        = 180                                                          
  LINE_SAMPLES = 360                                                          
  SAMPLE_TYPE  = "IEEE_REAL"                                                  
  SAMPLE_BITS  = 64                                                           
  UNIT         = "MILLIGAL"                                                   
  DESCRIPTION  = "                                                            
    This map is presented as a simple cylindrical projection with             
    the following parameters:                                                 
                                                                              
      Reference sphere radius    16.0 km                                      
      Minimum latitude          -89.5 degrees                                 
      Maximum latitude          +89.5 degrees                                 
      Easternmost longitude    +179.0 degrees                                 
      Westernmost longitude    -180.0 degrees                                 
    "                                                                         
END_OBJECT = IMAGE                                                            
                                                                              
END