<?xml version="1.0" encoding="utf-8"?>
<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1N00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<Product_Collection xmlns="http://pds.nasa.gov/pds4/pds/v1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1 https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1N00.xsd">

  <Identification_Area>
    <logical_identifier>urn:nasa:pds:a17hfe_thermal_conductivity:data</logical_identifier>
    <version_id>1.0</version_id>
    <title>Apollo 17 Lunar Surface Experiments Package Heat Flow Experiment ASCII Data Collection</title>
    <information_model_version>1.23.0.0</information_model_version>
    <product_class>Product_Collection</product_class>
    <Citation_Information>
      <publication_year>2025</publication_year>
      <description>The Apollo 17 Lunar Surface Experiments Package Heat Flow Experiment Data Collection</description>
      <List_Author>
        <Person>
          <given_name>David R.</given_name>
          <family_name>Williams</family_name>
          <Affiliation>
            <organization_name>National Space Science Data Center</organization_name>
          </Affiliation>
        </Person>
      </List_Author>
      <List_Editor>
        <Person>
          <given_name>Abigail</given_name>
          <family_name>Knight</family_name>
          <Affiliation>
            <organization_name>Washington University in St. Louis</organization_name>
          </Affiliation>
        </Person>
      </List_Editor>
    </Citation_Information>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2025-08-13</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>1972-12-12T03:05:47Z</start_date_time>
      <stop_date_time>1974-12-31T22:05:17Z</stop_date_time>
    </Time_Coordinates>
    <Primary_Result_Summary>
      <purpose>Science</purpose>
      <processing_level>Calibrated</processing_level>
      <description>Apollo 17 Lunar Surface Experiments Package Heat Flow Experiment Data Collection.</description>
    </Primary_Result_Summary>
    <Investigation_Area>
      <name>Apollo 17</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.apollo_17</lid_reference>
        <reference_type>collection_to_investigation</reference_type>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <Observing_System_Component>
        <name>Apollo 17 Lunar Surface Experiments Package</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.a17a</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>Apollo 17 Lunar Surface Experiments Package Heat Flow Experiment</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:hfe.a17a</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>
    <Target_Identification>
      <name>Moon</name>
      <type>Satellite</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:satellite.earth.moon</lid_reference>
        <reference_type>collection_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
  </Context_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:apollodoc:a17doc:a17_psr</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Apollo 17 Preliminary Science Report, NASA SP-330, published by NASA, Washington, D.C., 1973.</comment>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:apollodoc:commondoc:apollo_scientific_experiments_data_handbook</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Apollo Scientific Experiments Data Handbook, NASA Technical Memorandum X-58131, JSC-09166, published by NASA Johnson Space Center, Houston, Texas, Aug. 1974.</comment>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:apollodoc:commondoc:alsep_termination_report</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Bates, J.R., W.W. Lauderdale and H. Kernaghan, ALSEP termination report, NASA Reference Publication Series, NASA-RP-1036, 162 pages, published by NASA, Washington, D.C., 1979.</comment>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:a15hfe_thermal_conductivity:document:a15_psr_ch11_hfe</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Langseth, M. G., Jr., S. J. Keihm, J. L. Chute, Jr., and A. E. Wechsler, Heat flow experiment, In Apollo 15 Preliminary Science Report, Section 11, NASA SP-289, published by NASA, Washington, D.C., 1972.</comment>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:a17hfe_thermal_conductivity:document:a17_psr_ch9_hfe</lid_reference>
      <reference_type>collection_to_document</reference_type>
      <comment>Langseth, M. G., Jr., S. J. Keihm, and J. L. Chute, Jr., Heat flow experiment, In Apollo 17 Preliminary Science Report, Section 9, NASA SP-330, published by NASA, Washington, D.C., 1973.</comment>
    </Internal_Reference>
    <External_Reference>
      <doi>10.1029/1999JE001165</doi>
      <reference_text>Davies, M. E. and T. R. Colvin, Lunar coordinates in the regions of the Apollo landers, Journal of Geophysical Research, Volume 105, Issue E8, pages 20,227-20,280, 2000, doi:10.1029/1999JE001165.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Keihm, S. J., and M. G., Langseth, Jr., Surface brightness temperatures at the Apollo 17 heat flow site: Thermal conductivity of the upper 15 cm of regolith, Proceedings of the Lunar Science Conference, 4th, Volume 3, pages 2503-2513, 1973.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Keihm, S. J., J. L. Chute, K. Peters, and M. G. Langseth, Apollo 15 measurement of lunar surface brightness temperatures - thermal conductivity of the upper 1 1/2 meters of regolith, Earth Planetary Science Letters, 19, No. 3, pages 337-351, July 1973.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Langseth, M. G., Jr., Lunar Heat-Flow Experiment: Final Technical Report: 6 Jun. 1966 - 30 Jun. 1975, NASA-CR-151619, CU-4-77, 289p, Lamont-Doherty Geological Observatory of Columbia University, Palisades, New York, 1977.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Langseth, M. G., Jr., S. P. Clark Jr., J. L. Chute, Jr., S. J. Keihm, and A. E. Wechsler, The Apollo 15 Lunar Heat-Flow Measurement, In The Moon, Volume 4, Issue 3-4, pages 390-410, 1972.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Langseth, M. G., Jr., S. J. Keihm, and K. Peters, Revised lunar heat-flow values, Proceedings of the Lunar Science Conference, 7th, Volume 3, pages 3143-3171, 1976.</reference_text>
    </External_Reference>
    <External_Reference>
      <reference_text>Nagihara, M. G., Y. Saito, and P. T. Taylor, Reexamination Of the Apollo 15 Heat Flow Data Toward Understanding Potential Causes Of The Long-Term Subsurface Warming Observed, In: Abstracts of Papers Submitted to the 41th Lunar and Planetary Science Conference, Volume 41, Abstract 1353, 2010.</reference_text>
    </External_Reference>
  </Reference_List>
  <Collection>
    <collection_type>Data</collection_type>
  </Collection>
  <File_Area_Inventory>
    <File>
      <file_name>collection_data_inventory.csv</file_name>
    </File>
    <Inventory>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS DSV 1</parsing_standard_id>
      <records>10</records>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <field_delimiter>Comma</field_delimiter>
      <Record_Delimited>
        <fields>2</fields>
        <groups>0</groups>
        <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_format>%1s</field_format>
        </Field_Delimited>
        <Field_Delimited>
          <name>LIDVID_LID</name>
          <field_number>2</field_number>
          <data_type>ASCII_LIDVID_LID</data_type>
          <maximum_field_length unit="byte">255</maximum_field_length>
          <field_format>%-255s</field_format>
        </Field_Delimited>
      </Record_Delimited>
      <reference_type>inventory_has_member_product</reference_type>
    </Inventory>
  </File_Area_Inventory>
</Product_Collection>
