PDS_VERSION_ID               = PDS3                                           
RECORD_TYPE                  = FIXED_LENGTH                                   
RECORD_BYTES                 = 2880                                           
FILE_RECORDS                 = 180                                            
^IMAGE                       = "JGM50C01.IMG"                                 
INSTRUMENT_HOST_NAME         = {"MARINER 9","VIKING ORBITER 1",               
                                "VIKING ORBITER 2"}                           
TARGET_NAME                  = "MARS"                                         
INSTRUMENT_NAME              = "RADIO SCIENCE SUBSYSTEM"                      
DATA_SET_ID                  = "MR9/VO1/VO2-M-RSS-5-SHGADR-L2-V1.0"           
ORIGINAL_PRODUCT_ID          = "MARS50C.A01"                                  
PRODUCT_ID                   = "JGM50C01.IMG"                                 
PRODUCT_RELEASE_DATE         = 1998-01-15                                     
DESCRIPTION                  = "This file contains a digital                  
 map of Mars gravity accelerations derived from radio tracking                
 of the Mariner and Viking spacecraft.  The map is vertical gravity           
 in milligals at the surface referenced to a sphere of 3394.2 km              
 radius.  START_ORBIT_NUMBER and STOP_ORBIT_NUMBER below do not               
 have values because there are no Mars Global Surveyor data                   
 included in the model.  The map was produced by the JPL  Gravity             
 Science Team under the direction of W.L. Sjogren."                           
                                                                              
START_ORBIT_NUMBER           = "N/A"                                          
STOP_ORBIT_NUMBER            = "N/A"                                          
START_TIME                   = "N/A"                                          
STOP_TIME                    = "N/A"                                          
SOFTWARE_NAME                = "GRVMAP;V1.0"                                  
PRODUCT_CREATION_TIME        = 1995-02-17T12:34:56.789                        
PRODUCER_ID                  = "MARS GRAVSCI TEAM"                            
                                                                              
/* Structure Objects */                                                       
                                                                              
OBJECT                       = IMAGE                                          
  LINES                        = 180                                          
  LINE_SAMPLES                 = 360                                          
  SAMPLE_TYPE                  = "IEEE REAL"                                  
  SAMPLE_BITS                  = 64                                           
  UNIT                         = "MILLIGAL"                                   
  OFFSET                       = 0.0E+00                                      
  SCALING_FACTOR               = 1.0E+00                                      
  DESCRIPTION                  = "The Digital Map contains                    
values of vertical gravity.  The values can be obtained                       
by multiplying the sample in the map by SCALING_FACTOR                        
and then adding OFFSET. "                                                     
END_OBJECT                   = IMAGE                                          
                                                                              
OBJECT                       = IMAGE_MAP_PROJECTION                           
  ^DATA_SET_MAP_PROJECTION     = "DSMAP2.CAT"                                 
  COORDINATE_SYSTEM_TYPE       = "BODY-FIXED ROTATING"                        
  COORDINATE_SYSTEM_NAME       = PLANETOCENTRIC                               
  MAP_PROJECTION_TYPE          = "SIMPLE CYLINDRICAL"                         
  A_AXIS_RADIUS                = 3394.20 <KM>                                 
  B_AXIS_RADIUS                = 3394.20 <KM>                                 
  C_AXIS_RADIUS                = 3394.20 <KM>                                 
  FIRST_STANDARD_PARALLEL      = "N/A"                                        
  SECOND_STANDARD_PARALLEL     = "N/A"                                        
  POSITIVE_LONGITUDE_DIRECTION = "EAST"                                       
  CENTER_LATITUDE              = 0.0 <DEGREES>                                
  CENTER_LONGITUDE             = 0.0 <DEGREES>                                
  REFERENCE_LATITUDE           = 0.0 <DEGREES>                                
  REFERENCE_LONGITUDE          = 0.0 <DEGREES>                                
  LINE_FIRST_PIXEL             = 1                                            
  LINE_LAST_PIXEL              = 180                                          
  SAMPLE_FIRST_PIXEL           = 1                                            
  SAMPLE_LAST_PIXEL            = 360                                          
  MAP_PROJECTION_ROTATION      = 0.0 <DEGREES>                                
  MAP_RESOLUTION               = 1.0E+00                                      
  MAP_SCALE                    = "N/A"                                        
  MAXIMUM_LATITUDE             = 89.5 <DEGREES>                               
  MINIMUM_LATITUDE             = -89.5 <DEGREES>                              
  EASTERNMOST_LONGITUDE        = 179.5 <DEGREES>                              
  WESTERNMOST_LONGITUDE        = -179.5 <DEGREES>                             
  LINE_PROJECTION_OFFSET       = 89.5                                         
  SAMPLE_PROJECTION_OFFSET     = 179.5                                        
END_OBJECT                   = IMAGE_MAP_PROJECTION                           
                                                                              
END