PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = FIXED_LENGTH
RECORD_BYTES                 = 11520
FILE_RECORDS                 = 720
^IMAGE                       = ("GGMRO_120_DEGREESTRENGTH.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_DEGREESTRENGTH"
PRODUCT_ID                   = "GGMRO_120_DEGREESTRENGTH.IMG"
PRODUCER_ID                  = "MRO GRAVSCI TEAM"
PRODUCT_VERSION_ID           = "V1.0"
PRODUCER_FULL_NAME           = "ANTONIO GENOVA"
PRODUCER_INSTITUTION_NAME    = "NASA/GODDARD SPACE FLIGHT CENTER"
START_TIME                   = 1998-03-27T08:00:00.000
STOP_TIME                    = 2015-03-30T00:00:00.000
SOFTWARE_NAME                = "HIGEN;V9.0"
PRODUCT_CREATION_TIME        = 2016-02-12T17:30:00.000
PRODUCT_RELEASE_DATE         = 2016-03-01

DESCRIPTION                  = "
 This file contains a digital map of the local resolution on a 
 global scale for the NASA GMM-3 gravity field. We adopted the 
 degree-strength approach that is based on the comparison between
 the expected gravity accelerations, approximately 
 8.5 x 10**-5/l**2, and the localized uncertainties computed at 
 each degree. Each point gives the degree of the GMM-3 gravity 
 field at which the expected value and the error intersect. 
 This degree represents the maximum resolution at that location 
 on the globe.

 The map is in simple cylindrical projection at a resolution of 4 pixels
 per degree.

 This work was completed by A. Genova as a postdoctoral scientist at NASA
 Goddard Space Flight Center as part of the MRO Gravity Science Team, and 
 under the direction of M.T. Zuber and F.G. Lemoine.  The reference for the
 GMM-3 gravity field is GENOVAETAL2016, under review by Icarus."

OBJECT               = IMAGE
  LINES                      = 720
  LINE_SAMPLES               = 1440
  SAMPLE_TYPE                = PC_REAL
  SAMPLE_BITS                = 64
  UNIT                       = "DIMENSIONLESS"
  OFFSET                     = 0.0E+00
  SCALING_FACTOR             = 1.0E+00
  DESCRIPTION                = "The Digital Map contains
   values of the the local resolution on a global scale 
   for the NASA GMM-3 gravity field."
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              = 720
  SAMPLE_FIRST_PIXEL           = 1
  SAMPLE_LAST_PIXEL            = 1440
  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       = 359.5
  SAMPLE_PROJECTION_OFFSET     = 719.5
END_OBJECT           = IMAGE_MAP_PROJECTION

END