<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1I00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/mission/mro/v1/PDS4_MRO_1I00_1300.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/disp/v1/PDS4_DISP_1I00_1510.sch" schematypens="http://purl.oclc.org/dsdl/schematron" ?>
<?xml-model href="https://pds.nasa.gov/pds4/geom/v1/PDS4_GEOM_1I00_1960.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:mro="http://pds.nasa.gov/pds4/mission/mro/v1"
    xmlns:disp="http://pds.nasa.gov/pds4/disp/v1"
    xmlns:geom="http://pds.nasa.gov/pds4/geom/v1"
    xsi:schemaLocation=
    "http://pds.nasa.gov/pds4/pds/v1 https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1I00.xsd
    http://pds.nasa.gov/pds4/mission/mro/v1 https://pds.nasa.gov/pds4/mission/mro/v1/PDS4_MRO_1I00_1300.xsd
    http://pds.nasa.gov/pds4/disp/v1 https://pds.nasa.gov/pds4/disp/v1/PDS4_DISP_1I00_1510.xsd
    http://pds.nasa.gov/pds4/geom/v1 https://pds.nasa.gov/pds4/geom/v1/PDS4_GEOM_1I00_1960.xsd">
    
    <Identification_Area>
        <logical_identifier>urn:nasa:pds:mro_sharad_us_radargrams:data:s_01637101_rgram</logical_identifier>
        <version_id>1.0</version_id>
        <title>MRO SHARAD US Radargram</title>
        <information_model_version>1.18.0.0</information_model_version>
        <product_class>Product_Observational</product_class>
        <Citation_Information>
            <author_list>Campbell, B.A.</author_list>
            <publication_year>2024</publication_year>
            <description>MRO SHARAD US Radargrams</description>
        </Citation_Information>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2024-05-22T11:13:46.490Z</modification_date>
                <version_id>1.0</version_id>
                <description>PDS4 XML Label Creation</description>
            </Modification_Detail>
        </Modification_History>
    </Identification_Area>
    
    <Observation_Area>
        <Time_Coordinates>
            <start_date_time>2010-01-23T03:40:21.614Z</start_date_time>
            <stop_date_time>2010-01-23T03:41:28.456Z</stop_date_time>
        </Time_Coordinates>

        <Investigation_Area>
            <name>MARS RECONNAISSANCE ORBITER</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.mars_reconnaissance_orbiter</lid_reference>
                <reference_type>data_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>

        <Observing_System>
            <Observing_System_Component>
                <name>MARS RECONNAISSANCE ORBITER</name>
                <type>Host</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.mro</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
            <Observing_System_Component>
                <name>SHALLOW RADAR</name>
                <type>Instrument</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument:sharad.mro</lid_reference>
                    <reference_type>is_instrument</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
        </Observing_System>

        <Target_Identification>
            <name>Mars</name>
            <type>Planet</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:target:planet.mars</lid_reference>
                <reference_type>data_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>

        <Mission_Area>
            <mro:MRO_Parameters>
                <mro:product_version_id>1</mro:product_version_id>
                <mro:orbit_number>16371</mro:orbit_number>
                <mro:producer_institution_name>SMITHSONIAN INSTITUTION</mro:producer_institution_name>
                <mro:SHARAD_Parameters>
                    <mro:SHARAD_Observation_Parameters>
                        <mro:synthetic_aperture_duration unit="s">8.774</mro:synthetic_aperture_duration>
                        <mro:multilook_doppler_bandwidth unit="Hz">0.4</mro:multilook_doppler_bandwidth>
                        <mro:number_of_looks>7</mro:number_of_looks>
                        <mro:chirp_frequency_envelope>LINEAR</mro:chirp_frequency_envelope>
                        <mro:range_compression_window>HANN</mro:range_compression_window>
                        <mro:azimuth_processing_window>HANN</mro:azimuth_processing_window>
                    </mro:SHARAD_Observation_Parameters>
                </mro:SHARAD_Parameters>
            </mro:MRO_Parameters>
        </Mission_Area>

        <Discipline_Area>
            <disp:Display_Settings>
                <Local_Internal_Reference>
                    <local_identifier_reference>MRO_SHARAD_US_Radargram</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>

            <geom:Geometry>
                <geom:Geometry_Orbiter>
                    <geom:geometry_start_time_utc>2010-01-23T03:40:21.614Z</geom:geometry_start_time_utc>
                    <geom:geometry_stop_time_utc>2010-01-23T03:41:28.456Z</geom:geometry_stop_time_utc>
                    <geom:Surface_Geometry>
                        <geom:Surface_Geometry_Start_Stop>
                            <geom:start_subspacecraft_latitude unit="deg">66.185539</geom:start_subspacecraft_latitude>
                            <geom:stop_subspacecraft_latitude unit="deg">69.675010</geom:stop_subspacecraft_latitude>
                            <geom:start_subspacecraft_longitude unit="deg">235.99132</geom:start_subspacecraft_longitude>
                            <geom:stop_subspacecraft_longitude unit="deg">234.54475</geom:stop_subspacecraft_longitude>
                        </geom:Surface_Geometry_Start_Stop>
                    </geom:Surface_Geometry>
                </geom:Geometry_Orbiter>
            </geom:Geometry>
        </Discipline_Area>
    </Observation_Area>
    
    <Reference_List>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:mro_sharad_us_radargrams:browse:s_01637101_tiff</lid_reference>
            <reference_type>data_to_browse</reference_type>
            <comment>US RDR Browse Images (TIFF).</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:mro_sharad_us_radargrams:browse:s_01637101_thm</lid_reference>
            <reference_type>data_to_browse</reference_type>
            <comment>US RDR Browse Images (THM).</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:mro_sharad_us_radargrams:data:s_01637101_geom</lid_reference>
            <reference_type>data_to_associate</reference_type>
            <comment>SHARAD US RDR Geometry information.</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:mro_sharad_us_radargrams:document:rgram_processing</lid_reference>
            <reference_type>data_to_document</reference_type>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:mro_sharad_us_radargrams:document:edr_to_usrdr</lid_reference>
            <reference_type>data_to_document</reference_type>
        </Internal_Reference>
        <Source_Product_External>
            <external_source_product_identifier>MGS-M-MOLA-5-MEGDR-L3-V1.0:MEGA90N000EB.IMG</external_source_product_identifier>
            <reference_type>data_to_derived_source_product</reference_type>
            <curating_facility>PDS GEO</curating_facility>
            <description>Model of the Martian areoid used to vertically datum this simulation.</description>
        </Source_Product_External>
        <Source_Product_External>
            <external_source_product_identifier>MGS-M-MOLA-5-MEGDR-L3-V1.0</external_source_product_identifier>
            <reference_type>data_to_derived_source_product</reference_type>
            <doi>10.17189/1519460</doi>
            <curating_facility>PDS GEO</curating_facility>
            <description>MOLA Mission Experiment Gridded Data Records</description>
        </Source_Product_External>
        <Source_Product_External>
            <external_source_product_identifier>MRO-M-SPICE-6-V1.0</external_source_product_identifier>
            <reference_type>data_to_derived_source_product</reference_type> 
            <doi>10.17189/1520100</doi>
            <curating_facility>PDS NAIF</curating_facility>
            <description>Mars Reconnaissance Orbiter SPICE data archive</description>
        </Source_Product_External>
    </Reference_List>
    
    <File_Area_Observational>
        <File>
            <file_name>s_01637101_rgram.img</file_name>
            <creation_date_time>2021-10-23T05:00:34.710Z</creation_date_time>
        </File>
        <Array_2D_Image>
            <local_identifier>MRO_SHARAD_US_Radargram</local_identifier>
            <offset unit="byte">0</offset>
            <axes>2</axes>
            <axis_index_order>Last Index Fastest</axis_index_order>
            <description>Radar backscatter power.</description>
            <Element_Array>
                <data_type>IEEE754LSBSingle</data_type>
            </Element_Array>
            <Axis_Array>
                <axis_name>Line</axis_name>
                <elements>3600</elements>
                <sequence_number>1</sequence_number>
            </Axis_Array>
            <Axis_Array>
                <axis_name>Sample</axis_name>
                <elements>453</elements>
                <sequence_number>2</sequence_number>
            </Axis_Array>
        </Array_2D_Image>
    </File_Area_Observational>
    
    <File_Area_Observational_Supplemental>
        <File>
            <file_name>s_01637101_rgram.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>
