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   xmlns="http://pds.nasa.gov/pds4/pds/v1"
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  <Identification_Area>
    <logical_identifier>urn:nasa:pds:mess-rs-raw:data-rsr</logical_identifier>
    <version_id>1.0</version_id>
    <title>MESSENGER Radio Science RSR Data Products Collection</title>
    <information_model_version>1.13.0.0</information_model_version>
    <product_class>Product_Collection</product_class>
    <Citation_Information>
      <author_list>Verma, A. K.; Perry, M. E.; Lemoine, F. G.; Smith, D. E.; Ensor, S.; Reid, M. R.</author_list>
      <publication_year>2020</publication_year>
      <description>This is the collection of Radio Science Receiver (RSR) data products acquired
        during the MESSENGER mission.     
        RSR is a computer-controlled open loop receiver that digitally records a
        spacecraft signal through the use of analog to digital converters (ADCs) and
        up to four digital filter sub-channels.</description>
    </Citation_Information>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2022-05-20</modification_date>
        <version_id>1.0</version_id>
        <description>The data files in this collection have been migrated from PDS3 to PDS4.
                      The data files have not been changed; only a new PDS4 label was created
                      as part of the migration process.</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Context_Area>
    <Time_Coordinates>
      <start_date_time>2006-10-18T08:38:00Z</start_date_time>
      <stop_date_time>2015-04-29T01:54:00Z</stop_date_time>
    </Time_Coordinates>
    <Primary_Result_Summary>
      <purpose>Science</purpose>
      <processing_level>Raw</processing_level>
    </Primary_Result_Summary>
    <Investigation_Area>
      <name>MErcury Surface, Space ENvironment, GEochemistry, and Ranging Mission</name>
      <type>Mission</type>
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      </Internal_Reference>
    </Investigation_Area>
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      <Observing_System_Component>
        <name>MESSENGER</name>
        <type>Spacecraft</type>
        <Internal_Reference>
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        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>RSS</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:rss.mess</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>NASA Deep Space Network</name>
        <type>Observatory</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:facility:observatory.dsn</lid_reference>
          <reference_type>is_facility</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Instrumentation</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:dsn.rss</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 54</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:madrid.dss54_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 34</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:canberra.dss34_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 24</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:goldstone.dss24_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 14</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:goldstone.dss14_70m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 25</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:goldstone.dss25_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 26</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:goldstone.dss26_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
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      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 65</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:madrid.dss65_34m-post2005</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 15</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:goldstone.dss15_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 45</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:canberra.dss45_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 55</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:madrid.dss55_34m</lid_reference>
          <reference_type>is_telescope</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 63</name>
        <type>Telescope</type>
        <Internal_Reference>
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          <reference_type>is_telescope</reference_type>
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      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 43</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:canberra.dss43_70m</lid_reference>
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      </Observing_System_Component>
      <Observing_System_Component>
        <name>DSN Antenna DSS 35</name>
        <type>Telescope</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:telescope:canberra.dss35_34m</lid_reference>
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      </Observing_System_Component>
    </Observing_System>
    <Target_Identification>
      <name>Mercury</name>
      <type>Planet</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:planet.mercury</lid_reference>
        <reference_type>collection_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
  </Context_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:radiosci.documentation:dsn.0159-science:2001-02-28</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Reference document for the Radio Science Receiver (RSR) data.
                   For data collected earlier or later than this document, consult other
                   document products in the same collection.</comment>
    </Internal_Reference>
  </Reference_List>
  <Collection>
    <collection_type>Data</collection_type>
    <description>This is the collection of Radio Science Receiver (RSR) data products acquired
      during the MESSENGER mission.     
      RSR is a computer-controlled open loop receiver that digitally records a
      spacecraft signal through the use of analog to digital converters (ADCs) and
      up to four digital filter sub-channels.</description>
  </Collection>
  <File_Area_Inventory>
    <File>
      <file_name>collection_mess-rs-raw_rsr.csv</file_name>
      <creation_date_time>2020-10-12T20:55:16.497Z</creation_date_time>
      <file_size unit="byte">168350</file_size>
      <md5_checksum>24968d3e41c091a39d81d43544dd8dc3</md5_checksum>
    </File>
    <Inventory>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS DSV 1</parsing_standard_id>
      <records>2405</records>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <field_delimiter>Comma</field_delimiter>
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        <fields>2</fields>
        <groups>0</groups>
        <maximum_record_length unit="byte">257</maximum_record_length>
        <Field_Delimited>
          <name>Member Status</name>
          <field_number>1</field_number>
          <data_type>ASCII_String</data_type>
          <maximum_field_length unit="byte">1</maximum_field_length>
        </Field_Delimited>
        <Field_Delimited>
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          <data_type>ASCII_LIDVID_LID</data_type>
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        </Field_Delimited>
      </Record_Delimited>
      <reference_type>inventory_has_member_product</reference_type>
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  </File_Area_Inventory>
</Product_Collection>
