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  <Identification_Area>
    <logical_identifier>urn:nasa:pds:nh_rex:pluto_tnf</logical_identifier>
    <version_id>1.0</version_id>
    <title>New Horizons Radio Science Experiment (REX) Pluto Encounter Tracking and Navigation Files (TNF)</title>
    <information_model_version>1.19.0.0</information_model_version>
    <product_class>Product_Collection</product_class>
    
    <Citation_Information>
      <author_list>Linscott, I.</author_list>
      <editor_list>Kahan, D.; Hirsch, B.</editor_list>
      <publication_year>2026</publication_year>
      <doi>10.26007/dh12-sh59</doi>
      <description>
        This data set contains Tracking and Navigation Files (TNF) created for
        the New Horizons Radio Science Experiment (REX) instrument during the
        Pluto ENCOUNTER mission phase.  The collection includes uplink tuning
        profile data in, and extracted from, Tracking and Navigation Files
        (TNFs) for all CORE observations.  Although uplink data signals were
        sent from the Ground Element to REX during the Approach sub-phase,
        tuning profiles for those signals are not provided as they are not
        needed to analyze those REX Approach observations comprising instrument
        checkout, characterization and calibration activities.
        
        The REX datasets over the mission include calibrations using known radio
        sources, Jupiter, and cold sky measurements; operational readiness tests
        (ORTs); internal test pattern calibration; and prime science radiometry
        and occultation observations during the Pluto Encounter.
        
        These data were migrated from the previously released PDS3 data set
        NH-P-REX-2-PLUTO-V2.0.
      </description>
    </Citation_Information>
    
    <Modification_History>
      <Modification_Detail>
        <modification_date>2026-02-04</modification_date>
        <version_id>1.0</version_id>
        <description>Created during PDS4 migration by PDS-SBN (B. Hirsch)</description>
      </Modification_Detail>
    </Modification_History> 
  </Identification_Area>
  
  <Context_Area>
    <Time_Coordinates>
      <start_date_time>2015-04-08T18:16:33.775Z</start_date_time>
      <stop_date_time>2016-07-12T23:59:25.062Z</stop_date_time>
    </Time_Coordinates>
    
    <Primary_Result_Summary>
      <purpose>Calibration</purpose>
      <processing_level>Raw</processing_level>
        
      <Science_Facets>
        <wavelength_range>Radio</wavelength_range>
        <discipline_name>Radio Science</discipline_name>
      </Science_Facets>
    </Primary_Result_Summary>
    
    <Investigation_Area>
      <name>New Horizons</name>
      <type>Mission</type>
        
      <Internal_Reference>
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      </Internal_Reference>
    </Investigation_Area>
    
    <Observing_System>
      <Observing_System_Component>
        <name>The New Horizons (NH) Spacecraft</name>
        <type>Host</type>
          
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.nh</lid_reference>
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      </Observing_System_Component>
        
      <Observing_System_Component>
        <name>The Radio Science Experiment for New Horizons</name>
        <type>Instrument</type>
          
        <Internal_Reference>
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      <Observing_System_Component>
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        <type>Instrument</type>
          
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        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>
    
    <Target_Identification>
      <name>(134340) Pluto</name>
      <type>Dwarf Planet</type>
        
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:dwarf_planet.134340_pluto</lid_reference>
        <reference_type>collection_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
  </Context_Area>
  
  <Reference_List>
    <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:resource:resource.nh_rex_colxn_pluto_tnf_online</lid_reference>
          <reference_type>has_resource</reference_type>
       </Internal_Reference>
       <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:resource:resource.nh_rex_online</lid_reference>
          <reference_type>has_resource</reference_type>
       </Internal_Reference>
       <Internal_Reference>
      <lidvid_reference>urn:nasa:pds:nh_rex:pluto_tnf:overview::1.0</lidvid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Overview Document for REX Pluto Encounter TNF Collection</comment>
    </Internal_Reference>
      <Internal_Reference>
      <lid_reference>urn:nasa:pds:nh_documents:rex</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>REX Document Collection</comment>
    </Internal_Reference>
    
      <Internal_Reference>
      <lid_reference>urn:nasa:pds:nh_documents:mission</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>New Horizon Mission Document Collection</comment>
    </Internal_Reference>
    
      <Internal_Reference>
      <lidvid_reference>urn:nasa:pds:nh_rex:pluto_raw::1.0</lidvid_reference>
      <reference_type>collection_to_data</reference_type>
      <comment>REX Pluto Encounter Raw Data Collection</comment>
    </Internal_Reference>
    
      <Internal_Reference>
      <lidvid_reference>urn:nasa:pds:nh_rex:pluto_cal::1.0</lidvid_reference>
      <reference_type>collection_to_calibration</reference_type>
      <comment>REX Pluto Encounter Calibrated Data Collection</comment>
    </Internal_Reference>
    </Reference_List>
  
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    <collection_type>Data</collection_type>
  </Collection>
  
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      <file_name>collection_pluto_tnf.csv</file_name>
    </File>
    
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      <offset unit="byte">0</offset>
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