PDS_VERSION_ID       = PDS3

RECORD_TYPE          = FIXED_LENGTH
RECORD_BYTES         = 104
FILE_RECORDS         = 91
^TABLE               = "GAZETTER.TAB"

OBJECT               = TABLE
  NAME               = "Mars Pathfinder Landing Site Gazetteer"
  INTERCHANGE_FORMAT = ASCII
  ROWS               = 91
  COLUMNS            = 9
  ROW_BYTES          = 104
  DESCRIPTION        = "This table is a gazetteer of the names
                        informally assigned to many of the rocks and
                        other local small features visible near the
                        Mars Pathfinder landing site."

  OBJECT             = COLUMN
    NAME             = TARGET_NAME
    DATA_TYPE        = CHARACTER
    START_BYTE       = 2
    BYTES            = 8
    FORMAT           = "A8"
    DESCRIPTION      = "The planet or satellite on which the feature
                        is located."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = SEARCH_FEATURE_NAME
    DATA_TYPE        = CHARACTER
    START_BYTE       = 13
    BYTES            = 20
    FORMAT           = "A20"
    DESCRIPTION      = "The geographical feature name with all
                        diacritical marks stripped off.  This name is
                        stored in upper case only so that it can be
                        used for sorting and search purposes."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = DIACRITIC_FEATURE_NAME
    DATA_TYPE        = CHARACTER
    START_BYTE       = 36
    BYTES            = 20
    FORMAT           = "A20"
    DESCRIPTION      = "The geographical feature name containing
                        standard diacritical information.  Only one
                        feature in the Pathfinder table requires a
                        diacritical mark, and that is Souffle, which
                        has an acute accent on the 'e'."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = GRID_POSITION_X
    DATA_TYPE        = ASCII_REAL
    START_BYTE       = 58
    BYTES            = 6
    FORMAT           = "F6.2"
    UNIT             = METER
    DESCRIPTION      = "The north / south component of the object's
                        position.  A positive value indicates that the
                        object was north of the lander; a negative
                        value indicates it was to the south.  The
                        magnitude gives the distance between the
                        object and an east / west line drawn through
                        the center of the lander base petal (the
                        origin of Mars Local Level coordinate frame)."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = GRID_POSITION_Y
    DATA_TYPE        = ASCII_REAL
    START_BYTE       = 65
    BYTES            = 6
    FORMAT           = "F6.2"
    UNIT             = METER
    DESCRIPTION      = "The east / west component of the object's
                        position.  A positive value indicates that the
                        object was east of the lander; a negative
                        value indicates that it was to the west.  The
                        magnitude gives the distance between the
                        object and a north / south line drawn through
                        the center of the lander base petal (the
                        origin of the Mars Local Level coordinate frame)."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = FEATURE_DISTANCE
    DATA_TYPE        = ASCII_REAL
    START_BYTE       = 72
    BYTES            = 6
    FORMAT           = "F6.2"
    UNIT             = METER
    DESCRIPTION      = "The object's distance from the origin of the
                        Mars Local Level coordinate frame."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = FEATURE_WIDTH
    DATA_TYPE        = ASCII_REAL
    START_BYTE       = 79
    BYTES            = 5
    FORMAT           = "F5.2"
    UNIT             = METER
    DESCRIPTION      = "The horizontal size of the object: the width
                        of its maximum intersection with any plane
                        perpendicular to the IMP camera's line of
                        sight.  Estimated by virtual measurement."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = FEATURE_HEIGHT
    DATA_TYPE        = ASCII_REAL
    START_BYTE       = 85
    BYTES            = 5
    FORMAT           = "F5.2"
    UNIT             = METER
    DESCRIPTION      = "The vertical size of the feature.  Consider a
                        diagonal line segment drawn from the highest
                        point of a rock to a point where it touches
                        the Mars surface or extends below it.  Taking
                        that line segment as the hypoteneus of a right
                        triangle, the length of the vertical side is
                        the height of the rock.  The distance was
                        determined by virtual measurement, using the
                        following technique:

                          (i) find the lowest point (maximum Z value) of
                              the Martian surface in close proximity to
                              a rock by moving the cursor around in
                              MarsMap,
                         (ii) finding the highest point on the rock
                              (minimum Z value) by moving the cursor
                              over the rock in Marsmap, and
                        (iii) taking the difference of the Z values."
  END_OBJECT         = COLUMN

  OBJECT             = COLUMN
    NAME             = FEATURE_TYPE
    DATA_TYPE        = CHARACTER
    START_BYTE       = 92
    BYTES            = 10
    FORMAT           = "A10"
    UNIT             = "N/A"
    DESCRIPTION      = "This is used to distinguish rock-like objects
                        from a few other named surface features.  The
                        types used, which are not the usual list of
                        IAU feature types visible from orbit, are:

                        ROCK:   Any object that superficially appears
                                to be a rock, although many of them
                                may later be interpreted to be crust,
                                clods, conglomerates, etc.
                        DUNE:   Used for Mermaid Dune.
                        AREA:   An extended area that bears a name for
                                easy reference.  Used for Baker's
                                Bench and Photometry Flats."
  END_OBJECT         = COLUMN

END_OBJECT           = TABLE
END