<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1E00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/disp/v1/PDS4_DISP_1B00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/cart/v1/PDS4_CART_1D00_1940.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>

<Product_Observational xmlns="http://pds.nasa.gov/pds4/pds/v1" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xmlns:disp="http://pds.nasa.gov/pds4/disp/v1"
  xmlns:cart="http://pds.nasa.gov/pds4/cart/v1"
  xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1 https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1E00.xsd
  http://pds.nasa.gov/pds4/disp/v1 https://pds.nasa.gov/pds4/disp/v1/PDS4_DISP_1B00.xsd
  http://pds.nasa.gov/pds4/cart/v1 https://pds.nasa.gov/pds4/cart/v1/PDS4_CART_1D00_1940.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:lp_rs_jpl_gravity_derived:browse:jou075d1_ibg</logical_identifier>
    <version_id>1.0</version_id>
    <title>Lunar Prospector Gravity Browse Image: jou075d1_ibg</title>
    <information_model_version>1.14.0.0</information_model_version>
    <product_class>Product_Observational</product_class>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2021-01-13</modification_date>
        <version_id>1.0</version_id>
        <description>PDS4 migrated product.</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Observation_Area>
    <Time_Coordinates>
      <start_date_time xsi:nil="true" nilReason="missing"></start_date_time>
      <stop_date_time xsi:nil="true" nilReason="missing"></stop_date_time>
    </Time_Coordinates>
    <Investigation_Area>
      <name>Lunar Prospector</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.lunar_prospector</lid_reference>
        <reference_type>data_to_investigation</reference_type>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <Observing_System_Component>
        <name>Lunar Prospector</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.lp</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>Radio Science Subsystem</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:lp.rss</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>   
    <Target_Identification>
      <name>Moon</name>
      <type>Satellite</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:satellite.earth.moon</lid_reference>
        <reference_type>data_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
    
    <Discipline_Area>
      <disp:Display_Settings>
        <Local_Internal_Reference>
          <local_identifier_reference>Image_Object</local_identifier_reference>
          <local_reference_type>display_settings_to_array</local_reference_type>
        </Local_Internal_Reference>
        <disp:Display_Direction>
          <disp:horizontal_display_axis>Sample</disp:horizontal_display_axis>
          <disp:horizontal_display_direction>Left to Right</disp:horizontal_display_direction>
          <disp:vertical_display_axis>Line</disp:vertical_display_axis>
          <disp:vertical_display_direction>Top to Bottom</disp:vertical_display_direction>
        </disp:Display_Direction>
      </disp:Display_Settings>
      
      <cart:Cartography>
        <Local_Internal_Reference>
          <local_identifier_reference>Image_Object</local_identifier_reference>
          <local_reference_type>cartography_parameters_to_image_object</local_reference_type>
        </Local_Internal_Reference>
        <cart:Spatial_Domain>
          <cart:Bounding_Coordinates>
            <cart:west_bounding_coordinate unit="deg">0.0</cart:west_bounding_coordinate>
            <cart:east_bounding_coordinate unit="deg">360.0</cart:east_bounding_coordinate>
            <cart:north_bounding_coordinate unit="deg">90.0</cart:north_bounding_coordinate>
            <cart:south_bounding_coordinate unit="deg">-90.0</cart:south_bounding_coordinate>
          </cart:Bounding_Coordinates>
        </cart:Spatial_Domain>
        <cart:Spatial_Reference_Information>
          <cart:Horizontal_Coordinate_System_Definition>
            <cart:Planar>
              <cart:Map_Projection>
                <cart:map_projection_name>Equirectangular</cart:map_projection_name>
                <cart:Equirectangular>
                  <cart:latitude_of_projection_origin unit="deg">0.0</cart:latitude_of_projection_origin>
                  <cart:standard_parallel_1 unit="deg">0.0</cart:standard_parallel_1>
                  <cart:longitude_of_central_meridian unit="deg">-0.5</cart:longitude_of_central_meridian>
                </cart:Equirectangular>
              </cart:Map_Projection>
              <cart:Planar_Coordinate_Information>
                <cart:planar_coordinate_encoding_method>Coordinate Pair</cart:planar_coordinate_encoding_method>
                <cart:Coordinate_Representation>
                  <cart:pixel_resolution_x unit="km/pixel">30.33382</cart:pixel_resolution_x>
                  <cart:pixel_resolution_y unit="km/pixel">30.33382</cart:pixel_resolution_y>
                  <cart:pixel_scale_x unit="pixel/deg">1.0</cart:pixel_scale_x>
                  <cart:pixel_scale_y unit="pixel/deg">1.0</cart:pixel_scale_y>
                </cart:Coordinate_Representation>
              </cart:Planar_Coordinate_Information>
              <cart:Geo_Transformation>
                <cart:upperleft_corner_x unit="m">-5460087.60</cart:upperleft_corner_x>
                <cart:upperleft_corner_y unit="m">2730043.80</cart:upperleft_corner_y>
              </cart:Geo_Transformation>
            </cart:Planar>
            <cart:Geodetic_Model>
              <cart:latitude_type>Planetocentric</cart:latitude_type>
              <cart:a_axis_radius unit="km">1738.0</cart:a_axis_radius>
              <cart:b_axis_radius unit="km">1738.0</cart:b_axis_radius>
              <cart:c_axis_radius unit="km">1738.0</cart:c_axis_radius>
              <cart:longitude_direction>Positive East</cart:longitude_direction>
            </cart:Geodetic_Model>
          </cart:Horizontal_Coordinate_System_Definition>
        </cart:Spatial_Reference_Information>
      </cart:Cartography>
    </Discipline_Area>
  </Observation_Area>

  <File_Area_Observational>
    <File>
      <file_name>jou075d1.ibg</file_name>
      <comment>
        This file contains a digital,
        1 X 1 degree resolution map of the errors in the geoid
        anomalies of the moon. It is a 360 x 180 grid from 89.5 to -89.5
        degrees latitude, and -180.0 to 179.0 degrees longitude. The errors
        were computed by projecting the full covariance of the JGL075D gravity
        solution onto the surface of the satellite. The observation is lunar
        geoid uncertainty in meters at the surface referenced to a sphere of
        1738.0 km radius.
      </comment>
    </File>
    
    <Array_2D_Image>
      <local_identifier>Image_Object</local_identifier>
      <offset unit="byte">0</offset>
      <axes>2</axes>
      <axis_index_order>Last Index Fastest</axis_index_order>
      <description>A byte-scaled image showing the
        errors in the geoid anomalies of the moon.  The following
        algorithm translates the error in the geoid to an image DN:
        DN = (GEOID ERROR [METERS] - 0.6646) / 0.0567</description>
      <Element_Array>
        <data_type>UnsignedByte</data_type>
        <unit>milligals</unit>
        <scaling_factor>0.0567</scaling_factor>
        <value_offset>0.6646</value_offset>
      </Element_Array>
      <Axis_Array>
        <axis_name>Line</axis_name>
        <elements>180</elements>
        <sequence_number>1</sequence_number>
      </Axis_Array>
      <Axis_Array>
        <axis_name>Sample</axis_name>
        <elements>360</elements>
        <sequence_number>2</sequence_number>
      </Axis_Array>
    </Array_2D_Image>
  </File_Area_Observational>

  <File_Area_Observational_Supplemental>
    <File>
      <file_name>jou075d1.lbl</file_name>
    </File>
    <Stream_Text>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS3</parsing_standard_id>
      <description>Original PDS3 label</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
    </Stream_Text>
  </File_Area_Observational_Supplemental>
</Product_Observational>
