PDS_VERSION_ID                = PDS3
RECORD_TYPE                   = FIXED_LENGTH
FILE_RECORDS                  = 720
RECORD_BYTES                  = 2880
^IMAGE                        = "MEGA90N000CB.IMG"
DATA_SET_ID                   = "MGS-M-MOLA-5-MEGDR-L3-V1.0"
PRODUCT_ID                    = "MEGA90N000CB.IMG"
SPACECRAFT_NAME               = "MARS GLOBAL SURVEYOR"
INSTRUMENT_ID                 = MOLA
INSTRUMENT_NAME               = "MARS ORBITER LASER ALTIMETER"
TARGET_NAME                   = MARS
START_TIME                    = 1997-09-15T19:10:00.000
STOP_TIME                     = 2001-06-30T11:10:40.000
START_ORBIT_NUMBER            = 3
STOP_ORBIT_NUMBER             = 20333
PRODUCT_CREATION_TIME         = 2003-04-03T01:00:00
PRODUCT_VERSION_ID            = "2.0"
PRODUCER_ID                   = MGS_MOLA_TEAM
PRODUCER_FULL_NAME            = "DAVID E. SMITH"
PRODUCER_INSTITUTION_NAME     = "GODDARD SPACE FLIGHT CENTER"
DESCRIPTION                   = "This data product is the reference datum
  used to generate the MOLA topographic maps. The map is in the form of
  a binary table with one row for each 0.25-degree latitude. The datum
  consists of an equipotential surface described by the potential model
  GMM3, the Goddard Mars Gravity Model mgm1025 evaluated to degree and
  order 50. Truncation of this degree and order 80 field to degree 50, for
  consistency with earlier MOLA releases, introduces about 3 m of
  truncation error except over large volcanoes, where it may remove up to
  50 m of the areoid height. The uncertainty in the areoid through degree
  60 is 1.8 m RMS. The mean radius of the equipotential surface at the
  equator is 3,396,000 meters. The radius at a given latitude and longitude
  is found iteratively by evaluating the potential model at that location
  and matching the calculated potential to the mean equatorial potential."

OBJECT                        = IMAGE
 NAME                         = AREOID_RADIUS
 DESCRIPTION                  = "Areoid radius at the center of the 0.25
  by 0.25 degree area, after subtracting 3,396,000 meters."
 LINES                        = 720
 LINE_SAMPLES                 = 1440
 SAMPLE_TYPE                  = MSB_INTEGER
 SAMPLE_BITS                  = 16
 UNIT                         = METER
 SCALING_FACTOR               = 1
 OFFSET                       = 3396000
END_OBJECT                    = IMAGE

OBJECT                        = IMAGE_MAP_PROJECTION
 ^DATA_SET_MAP_PROJECTION     = "DSMAP.CAT"
 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              = 0.0 <DEGREE>
 CENTER_LONGITUDE             = 180.0 <DEGREE>
 REFERENCE_LATITUDE           = "N/A"
 REFERENCE_LONGITUDE          = "N/A"
 LINE_FIRST_PIXEL             = 1
 LINE_LAST_PIXEL              = 720
 SAMPLE_FIRST_PIXEL           = 1
 SAMPLE_LAST_PIXEL            = 1440
 MAP_PROJECTION_ROTATION      = 0.0
 MAP_RESOLUTION               = 4.0 <PIXEL/DEGREE>
 MAP_SCALE                    = 14.818 <KM/PIXEL>
 MAXIMUM_LATITUDE             = 90.0 <DEGREE>
 MINIMUM_LATITUDE             = -90.0 <DEGREE>
 WESTERNMOST_LONGITUDE        = 0.0 <DEGREE>
 EASTERNMOST_LONGITUDE        = 360.0 <DEGREE>
 LINE_PROJECTION_OFFSET       = 360.5
 SAMPLE_PROJECTION_OFFSET     = 720.5
 COORDINATE_SYSTEM_TYPE       = "BODY-FIXED ROTATING"
 COORDINATE_SYSTEM_NAME       = "PLANETOCENTRIC"
END_OBJECT                    = IMAGE_MAP_PROJECTION
END