PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = FIXED_LENGTH
RECORD_BYTES                 = 46080
FILE_RECORDS                 = 2880
^IMAGE                       = ("GGMRO_120_CRUST.IMG",1)
INSTRUMENT_HOST_NAME         = "MARS RECONNAISSANCE ORBITER"
TARGET_NAME                  = "MARS" 
INSTRUMENT_NAME              = "RADIO SCIENCE SUBSYSTEM"
DATA_SET_ID                  = "MRO-M-RSS-5-SDP-V1.0"
ORIGINAL_PRODUCT_ID          = "GMM3_CRUST"
PRODUCT_ID                   = "GGMRO_120_CRUST.IMG"
PRODUCT_VERSION_ID           = "V1.0"
PRODUCER_ID                  = "MRO GRAVSCI TEAM"
PRODUCER_FULL_NAME           = "GREGORY A. NEUMANN"
PRODUCER_INSTITUTION_NAME    = "NASA/GODDARD SPACE FLIGHT CENTER"
START_TIME                   = 1998-03-27T08:00:00.000
STOP_TIME                    = 2015-03-30T00:00:00.000
PRODUCT_CREATION_TIME        = 2016-02-12T17:30:00.000
PRODUCT_RELEASE_DATE         = 2016-03-01

DESCRIPTION                  = "
 This file contains a digital map of the Mars crustal thickness
 computed by using the NASA GMM-3 gravity model and the MOLA topography.
 Each point gives the Mars crustal thickness in km. We adopted a bulk 
 density of 2900 kg/m**3 for the crust and a density of 3500 kg/m**3 
 for the mantle. We performed a non-linear inversion for relief on the 
 crust-mantle boundary, applying a smoothness constraint to suppress
 spurious relief that reduces the amplitude by 0.5 at degree 80 and 0.25 
 at degree 100.

 The map is in simple cylindrical projection at a resolution of 
 16 pixels per degree.

 The reference for the GMM-3 gravity field is GENOVAETAL2016,
 under review by Icarus."

OBJECT               = IMAGE
  LINES                      = 2880
  LINE_SAMPLES               = 5760
  SAMPLE_TYPE                = PC_REAL
  SAMPLE_BITS                = 64
  UNIT                       = "KM"
  OFFSET                     = 0.0E+00
  SCALING_FACTOR             = 1.0E+00
  DESCRIPTION                = "The Digital Map contains
   values of the crustal thickness."
END_OBJECT           = IMAGE

OBJECT               = IMAGE_MAP_PROJECTION
  ^DATA_SET_MAP_PROJECTION     = "DSMAP.CAT"
  COORDINATE_SYSTEM_TYPE       = "BODY-FIXED ROTATING"
  COORDINATE_SYSTEM_NAME       = PLANETOCENTRIC
  MAP_PROJECTION_TYPE          = "SIMPLE CYLINDRICAL"
  A_AXIS_RADIUS                = 3396.0 <km>
  B_AXIS_RADIUS                = 3396.0 <km>
  C_AXIS_RADIUS                = 3396.0 <km>
  FIRST_STANDARD_PARALLEL      = "N/A"
  SECOND_STANDARD_PARALLEL     = "N/A"
  POSITIVE_LONGITUDE_DIRECTION = "EAST"
  CENTER_LATITUDE              = 0 <deg>
  CENTER_LONGITUDE             = 180 <deg>
  REFERENCE_LATITUDE           = 0.0 <deg>
  REFERENCE_LONGITUDE          = 0.0 <deg>
  LINE_FIRST_PIXEL             = 1
  LINE_LAST_PIXEL              = 2880
  SAMPLE_FIRST_PIXEL           = 1
  SAMPLE_LAST_PIXEL            = 5760
  MAP_PROJECTION_ROTATION      = 0.0 <deg>
  MAP_RESOLUTION               = 1.0E+00
  MAP_SCALE                    = "N/A"
  MAXIMUM_LATITUDE             = 90 <deg>
  MINIMUM_LATITUDE             = -90 <deg>
  EASTERNMOST_LONGITUDE        = 360 <deg>
  WESTERNMOST_LONGITUDE        = 0. <deg>
  LINE_PROJECTION_OFFSET       = 1439.5
  SAMPLE_PROJECTION_OFFSET     = 2879.5
END_OBJECT           = IMAGE_MAP_PROJECTION

END