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    <Identification_Area>
        <logical_identifier>urn:nasa:pds:nh_swap:trajectory</logical_identifier>
        <version_id>3.0</version_id>
        <title>New Horizons Spacecraft Trajectory Data</title>
        <information_model_version>1.19.0.0</information_model_version>
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        <Citation_Information>
            <editor_list>Crombie, M. K.; Gobat, C.; Lawton, P.J.; Parker, J. Wm.; Trantham, B.; Redfern, J.; Finley, T.; Enke, B.L.</editor_list>
            <publication_year>2026</publication_year>
            <doi>10.26007/f4zn-fj95</doi>
            <keyword>Astronomical coordinate systems</keyword>
            <description>
                This collection contains New Horizons (NH) spacecraft trajectory in various
                reference frames.

                The sampling period is 86400 NH spacecraft seconds, about one day, over
                the time period from launch through the end of 2028. The data will contain
                placeholder flags for some (future) dates where we do not have enough
                information to predict the spacecraft location accurately. Locations before
                2024-JUN-11 15:08:22.994 come from 'reconstructed' SPICE kernels, whereas
                later locations are estimated from 'predicted' SPICE kernel information.

                For the Pluto Time of Closest Approach (TCA) plus or minus approximately 30
                days, additional files are available. During this time period, the sampling
                rate varies.
            </description>
        </Citation_Information>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2025-12-12</modification_date>
                <version_id>3.0</version_id>
                <description>
                    Updated by New Horizons SOC for the K7 delivery. The cutoff for
                    reconstructed SPICE kernels is now 2024-JUN-11 15:08:22.994.
                </description>
            </Modification_Detail>
            <Modification_Detail>
                <modification_date>2025-11-05</modification_date>
                <version_id>2.0</version_id>
                <description>Created during PDS4 migration by PDS-SBN (P. Lawton).  Added
                    files from the Pluto Time of Closest Approach.
                </description>
            </Modification_Detail>
            <Modification_Detail>
                <modification_date>2024-10-09</modification_date>
                <version_id>1.0</version_id>
                <description>Created during PDS4 migration by PDS-SBN (P. Lawton).</description>
            </Modification_Detail>
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        <Time_Coordinates>
            <start_date_time>2006-01-20T00:00:00.000Z</start_date_time>
            <stop_date_time>2028-03-01Z</stop_date_time>
        </Time_Coordinates>

        <Primary_Result_Summary>
            <purpose>Science</purpose>
            <processing_level>Derived</processing_level>
            <Science_Facets>
                <domain>Dynamics</domain>
                <discipline_name>Radio Science</discipline_name>
            </Science_Facets>
            <Science_Facets>
                <domain>Dynamics</domain>
                <discipline_name>Particles</discipline_name>
            </Science_Facets>
        </Primary_Result_Summary>

        <Investigation_Area>
            <name>New Horizons</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.new_horizons</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
        <Investigation_Area>
            <name>New Horizons Kuiper Belt Extended Mission</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.new_horizons_kem1</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>
        <Investigation_Area>
            <name>New Horizons Kuiper Belt Extended Mission 2</name>
            <type>Mission</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:investigation:mission.new_horizons_kem2</lid_reference>
                <reference_type>collection_to_investigation</reference_type>
            </Internal_Reference>
        </Investigation_Area>

        <Observing_System>
            <Observing_System_Component>
                <name>New Horizons Spacecraft</name>
                <type>Host</type>
                <Internal_Reference>
                    <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.nh</lid_reference>
                    <reference_type>is_instrument_host</reference_type>
                </Internal_Reference>
            </Observing_System_Component>
        </Observing_System>

        <Target_Identification>
            <name>New Horizons Spacecraft</name>
            <type>Equipment</type>
            <Internal_Reference>
                <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.nh</lid_reference>
                <reference_type>ancillary_to_target</reference_type>
            </Internal_Reference>
        </Target_Identification>
    </Context_Area>
    <Reference_List>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:context:resource:resource.nh_swap_colxn_trajectory_online</lid_reference>
            <reference_type>has_resource</reference_type>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:context:resource:resource.nh_swap_online</lid_reference>
            <reference_type>has_resource</reference_type>
        </Internal_Reference>
        <Internal_Reference>
            <lidvid_reference>urn:nasa:pds:nh_swap:trajectory:trajectory_overview::3.0</lidvid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>Solar Wind Around Pluto (SWAP) Trajectory Collection Overview</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>Document collection for the New Horizons mission.</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:swap</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>Document collection for the Solar Wind Around Pluto (SWAP) instrument.</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission:nh_mission_overview</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>New Horizons Mission Overview Document</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission:nhkem1_mission_overview</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>New Horizons KEM 1 Mission Overview Document</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission:nhkem2_mission_overview</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>New Horizons KEM 2 Mission Overview Document</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission:payload_ssr</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>New Horizons science payload Space Science Reviews paper.</comment>
        </Internal_Reference>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:mission:soc_inst_icd</lid_reference>
            <reference_type>collection_to_document</reference_type>
            <comment>This document specifies the interfaces between the New Horizons Science Operations Center (SOC) and the instrument pipeline.</comment>
        </Internal_Reference>
    </Reference_List>
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        <collection_type>Geometry</collection_type>
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