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<Product_Collection xmlns="http://pds.nasa.gov/pds4/pds/v1"
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    <Identification_Area>
        <logical_identifier>urn:nasa:pds:venus-solar-wind-interactions:data</logical_identifier>
        <version_id>1.0</version_id>
        <title>Venus Solar Wind Interactions Simulation Output Collection</title>
        <information_model_version>1.13.0.0</information_model_version>
        <product_class>Product_Collection</product_class>
        <Citation_Information>
            <author_list>Brecht, S. H.; Ledvina, S. A.</author_list>
            <publication_year>2020</publication_year>
            <keyword>Simulation</keyword>
            <keyword>Venus</keyword>
            <keyword>Ionospheric structure</keyword>
            <keyword>Ambipolar electric Fields</keyword>
            <description>This collection contains the simulation output presented in 
                Brecht, S. H. and S. A. Ledvina, An explanation of the nightside 
                ionospheric structure of Venus, JGR, 2020. The data is stored in ASCII (text) format for easy reading.  Units
                for the results are in the cgs system, densities (cm^-3), magnetic 
                field (Gauss) and lengths (cm).  The magnetic field can be found 
                in the B-GradPe.dat.gz.  The O+ density is designated by 2s in the 
                file name.  The O2+ density is designated by 3s in the file  name.  
                There are 2 types of data files, *.dat.gz and *.sdat.gz.  The *.dat 
                files contain the data stored on the Cartesian grid, while the *.sdat 
                contains the data stored on the spherical mesh.</description>
        </Citation_Information>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2020-12-04</modification_date>
                <version_id>1.0</version_id>
                <description>Initial Version</description>
            </Modification_Detail>
        </Modification_History>
    </Identification_Area>
    <Context_Area>
        <Time_Coordinates>
            <start_date_time xsi:nil="true" nilReason="inapplicable"></start_date_time>
            <stop_date_time xsi:nil="true" nilReason="inapplicable"></stop_date_time>
        </Time_Coordinates>
        <Primary_Result_Summary>
            <purpose>Science</purpose>
            <processing_level>Derived</processing_level>
            <description>This is simulation data</description>
        </Primary_Result_Summary>
        <Investigation_Area>
            <name>Pioneer Venus</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.pioneer_venus</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
        <Investigation_Area>
            <name>Venus Express</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.venus_express</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
        <Observing_System>
            <name>Pioneer Venus</name>
            <Observing_System_Component>
                <name>Pioneer Venus Orbiter</name>
                <type>Spacecraft</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.pvo</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
        </Observing_System>
        <Observing_System>
            <name>Venus Express</name>
            <Observing_System_Component>
                <name>Venus Express</name>
                <type>Spacecraft</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.vex</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
            <Observing_System_Component>
                <name>Computer Simulation</name>
                <type>Instrument</type>
            </Observing_System_Component>
        </Observing_System>
        <Target_Identification>
            <name>Venus</name>
            <type>Planet</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:target:planet.venus</lid_reference>
                <reference_type>collection_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>
        <Target_Identification>
            <name>Solar Wind</name>
            <type>Plasma Stream</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:target:plasma_stream.solar_wind</lid_reference>
                <reference_type>collection_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>
    </Context_Area>
    <Reference_List>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:venus-solar-wind-interactions:document:userguide</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>The User Guide contains a description of the data in this collection.</comment>
        </Internal_Reference>
    </Reference_List>
    <Collection>
        <collection_type>Data</collection_type>
        <description>Venus Solar Wind Interactions Data</description>
    </Collection>
    <File_Area_Inventory>
        <File>
            <file_name>collection_data_1.0.csv</file_name>
            <md5_checksum>b2ce15b2df00344b8caa618e896517f2</md5_checksum>
        </File>
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            <offset unit="byte">0</offset>
            <parsing_standard_id>PDS DSV 1</parsing_standard_id>
            <description>This table lists the products in this collection</description>
            <records>7</records>                                                                                               
            <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
            <field_delimiter>Comma</field_delimiter>
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                <fields>2</fields>
                <groups>0</groups>
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                    <name>Member Status</name>
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                <Field_Delimited>
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                    <data_type>ASCII_LIDVID_LID</data_type>
                    <maximum_field_length unit="byte">255</maximum_field_length> 
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            <reference_type>inventory_has_member_product</reference_type>   
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</Product_Collection>