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    <Identification_Area>
        <logical_identifier>urn:nasa:pds:vg2-mag-nep:data-sc-field-asc</logical_identifier>
        <version_id>1.0</version_id>
        <title>VG2 MAG Spacecraft Magnetic Field ASCII Data at Neptune Data Collection</title>
        <information_model_version>1.24.0.0</information_model_version>
        <product_class>Product_Collection</product_class>
        <Citation_Information>
            <publication_year>1993</publication_year>
            <doi>10.17189/ayw7-c008</doi>
            <description>
                This collection contains the derived ASCII spacecraft magnetic
                field data at a 48 second sample rate. These data provide
                zero level offsets used in the data processing. Spacecraft
                field data is provided in spacecraft coordinates. These data
                cover 1989-08-22T00:00:47.663Z - 1989-08-25T01:59:11.319Z  
            </description>
            <List_Author>
                <Person>
                    <given_name>John E. P.</given_name>
                    <family_name>Connerney</family_name>
                    <person_orcid>0000-0001-7478-6462</person_orcid>
                    <sequence_number>1</sequence_number>
                    <Affiliation>
                        <organization_name>NASA Goddard Space Flight Center</organization_name>
                        <organization_rorid>https://ror.org/0171mag52</organization_rorid>
                    </Affiliation>
                </Person>
            </List_Author>
        </Citation_Information>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2026-02-09</modification_date>
                <version_id>1.0</version_id>
                <description>
                    This is the original version of this collection in PDS4.
                </description>
            </Modification_Detail>
        </Modification_History>
    </Identification_Area>
    <Context_Area>
        <Time_Coordinates>
            <start_date_time>1989-08-22T00:00:47.663Z</start_date_time>
            <stop_date_time>1989-08-25T01:59:11.319Z</stop_date_time>
        </Time_Coordinates>
        <Primary_Result_Summary>
            <purpose>Engineering</purpose>
            <processing_level>Derived</processing_level>
            <Science_Facets>
                <domain>Magnetosphere</domain>
                <discipline_name>Fields</discipline_name>
                <facet1>Magnetic</facet1>
                <facet2>Background</facet2>
            </Science_Facets>
        </Primary_Result_Summary>
        <Investigation_Area>
            <name>Voyager</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.voyager</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
        <Observing_System>
            <Observing_System_Component>
                <name>Voyager 2</name>
                <type>Host</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.vg2</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
            <Observing_System_Component>
                <name>Triaxial Fluxgate Magnetometer (MAG)</name>
                <type>Instrument</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument:vg2.mag</lid_reference>
                    <reference_type>is_instrument</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
        </Observing_System>
        <Target_Identification>
            <name>Triton</name>
            <type>Satellite</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:target:satellite.neptune.triton</lid_reference>
                <reference_type>collection_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>
        <Target_Identification>
            <name>Neptune</name>
            <type>Planet</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:target:planet.neptune</lid_reference>
                <reference_type>collection_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>
        <Mission_Area>
            <msn:Mission_Information>
                <msn:mission_phase_name>Neptune Encounter</msn:mission_phase_name>
            </msn:Mission_Information>
        </Mission_Area>
    </Context_Area>
    <Reference_List>
        <Internal_Reference>
              <lid_reference>urn:nasa:pds:context:resource:resource.vg2-mag-nep_online</lid_reference>
              <reference_type>has_resource</reference_type>
           </Internal_Reference>
           <Internal_Reference>
              <lid_reference>urn:nasa:pds:context:resource:resource.vg2-mag-nep_colxn_data-sc-field-asc_online</lid_reference>
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           <Internal_Reference>
            <lid_reference>urn:nasa:pds:vg2-mag-nep:document:data-mag-hg-nep-desc</lid_reference>
            <reference_type>collection_to_document</reference_type>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:vg2-mag-nep:document:errata</lid_reference>
            <reference_type>collection_to_errata</reference_type>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:vg2-nep-traj-hg-48s:data</lid_reference>
            <reference_type>collection_to_associate</reference_type>
            <comment>
                This collection contains Voyager 2 position vectors relative
                to the Sun in both cartesian and spherical Heliographic coordinates
                for the time period when Voyager was near Neptune but not within its 
                magnetosphere. 
            </comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:vg2-nep-traj-nls-12s:data</lid_reference>
            <reference_type>collection_to_associate</reference_type>
            <comment>
                This collection contains Voyager 2 12s ion density, temperature, and velocity 
                data from the Voyager 2 Neptune West Longitude System.  
            </comment>
        </Internal_Reference>
        <Source_Product_External>
            <external_source_product_identifier>VG2-N-MAG-4-RDR-HGCOORDS-1.92SEC-V2.0</external_source_product_identifier>
            <reference_type>data_to_derived_source_product</reference_type>
            <doi>10.17189/81v3-p346</doi>
            <curating_facility>PDS Planetary Plasma Interactions Node</curating_facility>
            <description>
                This is the first version converted to PDS4. The DOI references the source PDS3 data set.  
            </description>
        </Source_Product_External>
        <Source_Product_External>
            <external_source_product_identifier>VG2-N-MAG-4-RDR-HGCOORDS-9.6SEC-V2.0</external_source_product_identifier>
            <reference_type>data_to_derived_source_product</reference_type>
            <doi>10.17189/rm6t-h085</doi>
            <curating_facility>PDS Planetary Plasma Interactions Node</curating_facility>
            <description>
                This is the first version converted to PDS4. The DOI references the source PDS3 data set.  
            </description>
        </Source_Product_External>
        <Source_Product_External>
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            <doi>10.17189/1519974</doi>
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            </description>
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    </Reference_List>
    <Collection>
        <collection_type>Data</collection_type>
        <description>
            VG2 MAG Spacecraft Magnetic Field ASCII Data at Neptune Data Collection
        </description>
    </Collection>
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