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<Product_Observational
  xmlns="http://pds.nasa.gov/pds4/pds/v1"
  xmlns:pds="http://pds.nasa.gov/pds4/pds/v1"
  xmlns:disp="http://pds.nasa.gov/pds4/disp/v1"
  xmlns:cart="http://pds.nasa.gov/pds4/cart/v1"
  xmlns:lro="http://pds.nasa.gov/pds4/mission/lro/v1"
  xmlns:img="http://pds.nasa.gov/pds4/img/v1"
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  <Identification_Area>
    <logical_identifier>urn:nasa:pds:lro-l-lroc-5-rdr:lrolrc_2001_data:bdr.nac_pole.nac_pole_north_cm_035.nac_pole_north_cm_035_p892n3150</logical_identifier>
    <version_id>2.0</version_id>
    <title>1 meter/pixel</title>
    <information_model_version>1.19.0.0</information_model_version>
    <product_class>Product_Observational</product_class>
    <Alias_List>
      <Alias>
        <alternate_id>NAC_POLE_NORTH_CM_035_P892N3150.IMG</alternate_id>
        <comment>Original filename at PDS3 archive, on-line at LROC Node</comment>
      </Alias>
    </Alias_List>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2025-12-12</modification_date>
        <version_id>2.0</version_id>
        <description>
          Correction to PDS4 labels.
        </description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2024-04-18</modification_date>
        <version_id>1.0</version_id>
        <description>
          This PDS4 labeled (detached label) product (orig PDS3 image) is a result
          migrating Lunar Reconnaissance Orbiter Camera RDR data to PDS4.
        </description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Observation_Area>
    <Time_Coordinates>
      <start_date_time xsi:nil="true" nilReason="inapplicable"/>
      <stop_date_time xsi:nil="true" nilReason="inapplicable"/>
    </Time_Coordinates>
    <Primary_Result_Summary>
      <purpose>Science</purpose>
      <processing_level>Derived</processing_level>
      <description>
        This is an mosaic made using a set of 287 controlled images with
        sub-solar longitudes ranging from 30 degrees to 40 degrees. This is a
        subset of the images in a controlled mosaic consisting of 9687 NAC
        images of the lunar north polar region acquired between 2009 and 2014.
        Control solutions were performed using the ISIS jigsaw application using
        405,532 points and over three million measures. The network was
        constrained using 16,302 points in 226 images that were tied to Lunar
        Orbiter Laser Altimeter (LOLA) track data. The residuals from the bundle
        adjustment performed by ISIS jigsaw were (in pixels) a solution variance
        of 0.40, a mean of 0.52, a standard deviation of 0.48, and a maximum of
        13.0. The mosaic was created by selecting images with similar sub-solar
        longitudes and layering the images such that the most representative
        image (closest sub-solar point) is on top. The mosaic provides an idea
        of what the surface looks like with varying degrees of sub-solar
        azimuths. The illumination mosaics only cover some of the polar region;
        therefore, blank tiles containing no NAC data andi those with only a few
        NAC images are omitted from the archive. The images were map-projected
        using a 20 meter pixel scale polar digital elevation model derived from
        LOLA tracks. The mosaic range is 84 to 90 degrees and is stored as 24
        polar stereographic map tiles. The mosaic is tiled into with a scheme
        that includes four latitudinal bands of 1.5 degrees radiating from the
        pole. There are four tiles in the first band (88.5 to 90 degrees
        latitude), eight in the second (87 to 88.5 degrees latitude), twelve in
        the third (85.5 to 87 degrees latitude), and sixteen in the fourth band
        (84 to 85.5 degrees latitude). Stereographic projection at 1 meter/px
        centered at 90N, 0E with a radius of 1737400 m. The center of this tile
        is at 89.2N, 315.0E. The latitude and longitude range for this tile is
        88.50N,270.00E to 90.00N,360.00E. For more information see
        [ARCHINALETAL2023].
      </description>
    </Primary_Result_Summary>
    <Investigation_Area>
      <name>Lunar Reconnaissance Orbiter</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.lunar_reconnaissance_orbiter</lid_reference>
        <reference_type>data_to_investigation</reference_type>
        <comment>This is the PDS4 logical identifier for LRO</comment>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <Observing_System_Component>
        <name>LUNAR RECONNAISSANCE ORBITER CAMERA</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:lro.lroc</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>
    <Mission_Area>
      <lro:LRO_Parameters>
        <lro:product_type>RDR</lro:product_type>
        <lro:product_version_id>1.0</lro:product_version_id>
        <lro:mission_phase_name>NOMINAL MISSION</lro:mission_phase_name>
        <lro:mission_phase_name>SCIENCE MISSION</lro:mission_phase_name>
        <lro:mission_phase_name>EXTENDED SCIENCE MISSION</lro:mission_phase_name>
        <lro:producer_institution_name>Arizona State University</lro:producer_institution_name>
      </lro:LRO_Parameters>
    </Mission_Area>
    <Discipline_Area>
      <img:Imaging>
        <Local_Internal_Reference>
          <local_identifier_reference>NAC_POLE_NORTH_CM_035_P892N3150</local_identifier_reference>
          <local_reference_type>imaging_parameters_to_image_object</local_reference_type>
        </Local_Internal_Reference>
        <img:Optical_Filter>
          <img:filter_name>600</img:filter_name>
          <img:bandwidth unit="nm">300</img:bandwidth>
          <img:center_filter_wavelength unit="nm">600</img:center_filter_wavelength>
        </img:Optical_Filter>
        <img:Sampling>
          <img:sample_bit_mask>2#11111111111111111111111111111111</img:sample_bit_mask>
        </img:Sampling>
      </img:Imaging>
      <cart:Cartography>
        <Local_Internal_Reference>
          <local_identifier_reference>NAC_POLE_NORTH_CM_035_P892N3150</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">270.0</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">88.5</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>Polar Stereographic</cart:map_projection_name>
                <cart:Polar_Stereographic>
                  <cart:longitude_of_central_meridian unit="deg">0.0</cart:longitude_of_central_meridian>
                  <cart:latitude_of_projection_origin unit="deg">90</cart:latitude_of_projection_origin>
                </cart:Polar_Stereographic>
                <!-- A specific description of this projection may be found in DSMAP.CAT in the CATALOG directory -->
              </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="deg/pixel">3.297788621680858e-05</cart:pixel_resolution_x>
                  <cart:pixel_resolution_y unit="deg/pixel">3.297788621680858e-05</cart:pixel_resolution_y>
                  <cart:pixel_scale_x unit="m/pixel">1.0</cart:pixel_scale_x>
                  <cart:pixel_scale_y unit="m/pixel">1.0</cart:pixel_scale_y>
                </cart:Coordinate_Representation>
              </cart:Planar_Coordinate_Information>
              <cart:Geo_Transformation>
                <cart:upperleft_corner_x unit="m">45487.5</cart:upperleft_corner_x>
                <cart:upperleft_corner_y unit="m">-0.49999999999164</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">1737.4</cart:a_axis_radius>
              <cart:b_axis_radius unit="km">1737.4</cart:b_axis_radius>
              <cart:c_axis_radius unit="km">1737.4</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>
      <disp:Display_Settings>
        <Local_Internal_Reference>
          <local_identifier_reference>Image_Array_Identifier</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>
    </Discipline_Area>
  </Observation_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:lro-l-lroc-5-rdr:lrolrc_2001_data:bdr.nac_pole.nac_pole_north_cm_035.nac_pole_north_cm_035_readme</lid_reference>
      <reference_type>data_to_document</reference_type>
      <comment>documentation and citation(s) for this data product</comment>
    </Internal_Reference>
    <External_Reference>
      <doi>10.1007/s11214-010-9634-2</doi>
      <reference_text>
        Robinson, M. S.; Brylow, S. M.; Tschimmel, M.; Humm, D.; Lawrence, S. J.; Thomas, P. C.;
        Denevi, B. W.; Bowman-Cisneros, E.; Zerr, J.; Ravine, M. A.; Caplinger, M. A.; Ghaemi, F. T.; Schaffner, J. A.;
        Malin, M. C.; Mahanti, P.; Bartels, A.; Anderson, J.; Tran, T. N.; Eliason, E. M.; McEwen, A. S. Turtle, E.;
        Jolliff, B. L.; Hiesinger, H., 2010, "Lunar Reconnaissance Orbiter Camera (LROC) Instrument Overview", Space
        Science Reviews, Volume 150, Issue 1-4, pp. 81-124
      </reference_text>
      <description>instrument overview</description>
    </External_Reference>
  </Reference_List>
  <File_Area_Observational>
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      <file_name>NAC_POLE_NORTH_CM_035_P892N3150.IMG</file_name>
      <local_identifier>NAC_POLE_NORTH_CM_035_P892N3150</local_identifier>
      <creation_date_time>2022-10-19T11:01:57</creation_date_time>
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      <comment>
        This is an mosaic made using a set of 287 controlled images with
        sub-solar longitudes ranging from 30 degrees to 40 degrees. This is a
        subset of the images in a controlled mosaic consisting of 9687 NAC
        images of the lunar north polar region acquired between 2009 and 2014.
        Control solutions were performed using the ISIS jigsaw application using
        405,532 points and over three million measures. The network was
        constrained using 16,302 points in 226 images that were tied to Lunar
        Orbiter Laser Altimeter (LOLA) track data. The residuals from the bundle
        adjustment performed by ISIS jigsaw were (in pixels) a solution variance
        of 0.40, a mean of 0.52, a standard deviation of 0.48, and a maximum of
        13.0. The mosaic was created by selecting images with similar sub-solar
        longitudes and layering the images such that the most representative
        image (closest sub-solar point) is on top. The mosaic provides an idea
        of what the surface looks like with varying degrees of sub-solar
        azimuths. The illumination mosaics only cover some of the polar region;
        therefore, blank tiles containing no NAC data andi those with only a few
        NAC images are omitted from the archive. The images were map-projected
        using a 20 meter pixel scale polar digital elevation model derived from
        LOLA tracks. The mosaic range is 84 to 90 degrees and is stored as 24
        polar stereographic map tiles. The mosaic is tiled into with a scheme
        that includes four latitudinal bands of 1.5 degrees radiating from the
        pole. There are four tiles in the first band (88.5 to 90 degrees
        latitude), eight in the second (87 to 88.5 degrees latitude), twelve in
        the third (85.5 to 87 degrees latitude), and sixteen in the fourth band
        (84 to 85.5 degrees latitude). Stereographic projection at 1 meter/px
        centered at 90N, 0E with a radius of 1737400 m. The center of this tile
        is at 89.2N, 315.0E. The latitude and longitude range for this tile is
        88.50N,270.00E to 90.00N,360.00E. For more information see
        [ARCHINALETAL2023].
      </comment>
    </File>
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      <offset unit="byte">0</offset>
      <object_length unit="byte">181952</object_length>
      <parsing_standard_id>PDS3</parsing_standard_id>
      <description>PDS3 attached header</description>
    </Header>
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      <axes>2</axes>
      <axis_index_order>Last Index Fastest</axis_index_order>
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        <axis_name>Line</axis_name>
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      <Axis_Array>
        <axis_name>Sample</axis_name>
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