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 <Identification_Area>
  <logical_identifier>urn:nasa:pds:a15_17_hfe_concatenated:data:a17p2_depth</logical_identifier>
  <version_id>1.0</version_id>
  <title>Apollo 17 probe 2 'depth</title>
  <information_model_version>1.12.0.0</information_model_version>
  <product_class>Product_Observational</product_class>
  <Citation_Information>
   <author_list>St. Clair, M; Million, C.; Siegler, M.</author_list>
   <editor_list>Ward, J.</editor_list>
   <publication_year>2019</publication_year>
   <description>
    This table contains data from 1972-1977 for most subsurface sensors of
    Apollo 17 probe 2 in this bundle's 'depth' format. It includes data from
    various products in PDS3 bundle A17A-L-HFE-3-THERMAL-CONDUCTIVITY-V1.0 and
    PDS4 collection urn:nasa:pds:a17hfe_calibrated_arcsav:data, as well as data
    released by Nagihara et al. along with the article "Examination of the
    Long‐Term Subsurface Warming Observed at the Apollo 15 and 17 Sites
    Utilizing the Newly Restored Heat Flow Experiment Data From 1975 to 1977,"
    JGR Planets 123 (5), May 2018, doi: 10.1029/2018JE005579.
   </description>
  </Citation_Information>
  <Modification_History>
   <Modification_Detail>
    <modification_date>2020-02-13</modification_date>
    <version_id>1.0</version_id>
    <description>
     Initial version.
    </description>
   </Modification_Detail>
  </Modification_History>
 </Identification_Area>
 <Observation_Area>
  <Time_Coordinates>
   <start_date_time>1972-12-12T03:08:27.000Z</start_date_time>
   <stop_date_time>1977-09-30T18:06:22.080Z</stop_date_time>
  </Time_Coordinates>
  <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>data_to_investigation</reference_type>
   </Internal_Reference>
  </Investigation_Area>
  <Observing_System>
   <Observing_System_Component>
    <name>APOLLO 17 LUNAR SURFACE EXPERIMENTS PACKAGE</name>
    <type>Spacecraft</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>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>data_to_target</reference_type>
   </Internal_Reference>
  </Target_Identification>
 </Observation_Area>
 <Reference_List>
  <Source_Product_Internal>
   <lidvid_reference>urn:nasa:pds:a17hfe_calibrated_arcsav:data::1.0</lidvid_reference>
   <reference_type>data_to_derived_source_product</reference_type>
  </Source_Product_Internal>
  <Source_Product_External>
   <external_source_product_identifier>A17A-L-HFE-3-THERMAL-CONDUCTIVITY-V1.0</external_source_product_identifier>
   <reference_type>data_to_derived_source_product</reference_type>
   <curating_facility>GEO</curating_facility>
  </Source_Product_External>
  <Source_Product_External>
   <external_source_product_identifier>10.1029/2018JE005579</external_source_product_identifier>
   <reference_type>data_to_derived_source_product</reference_type>
   <doi>10.1029/2018JE005579</doi>
   <description>
    Data released with publication: Nagihara et al., Examination of the
    Long‐Term Subsurface Warming Observed at the Apollo 15 and 17 Sites
    Utilizing the Newly Restored Heat Flow Experiment Data From 1975 to 1977,
    JGR Planets 123 (5), May 2018. Contains data recovered from ARCSAV tapes.
   </description>
  </Source_Product_External>
 </Reference_List>
 <File_Area_Observational>
  <File>
   <file_name>a17p2_depth.tab</file_name>
   <file_size unit="byte">12768973</file_size>
   <records>275301</records>
  </File>
  <Header>
   <name>Header</name>
   <offset unit="byte">0</offset>
   <object_length unit="byte">27</object_length>
   <parsing_standard_id>UTF-8 Text</parsing_standard_id>
  </Header>
  <Table_Delimited>
   <name>a17p2_depth</name>
   <offset unit="byte">27</offset>
   <parsing_standard_id>PDS DSV 1</parsing_standard_id>
   <records>275300</records>
   <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
   <field_delimiter>Comma</field_delimiter>
   <Record_Delimited>
    <fields>5</fields>
    <groups>0</groups>
    <maximum_record_length unit="byte">49</maximum_record_length>
    <Field_Delimited>
     <name>Time</name>
     <field_number>1</field_number>
     <data_type>ASCII_Date_Time_YMD_UTC</data_type>
     <maximum_field_length unit="byte">24</maximum_field_length>
     <description>
      Earth-received date and time of observation.
     </description>
    </Field_Delimited>
    <Field_Delimited>
     <name>T</name>
     <field_number>2</field_number>
     <data_type>ASCII_Real</data_type>
     <maximum_field_length unit="byte">9</maximum_field_length>
     <unit>K</unit>
     <description>
      Temperature of the thermometer. Derived from average and corrected
      differential temperature values when not given in source data; otherwise,
      explicitly-given temperature from source data.
     </description>
    </Field_Delimited>
    <Field_Delimited>
     <name>Sensor</name>
     <field_number>3</field_number>
     <data_type>ASCII_String</data_type>
     <maximum_field_length unit="byte">5</maximum_field_length>
     <description>
      Thermometer code name. For differential thermometers: 'T' + 'R' for ring
      or 'G' for gradient + probe number + probe half (1 upper, 2 lower) + 'A'
      for upper or 'B' for lower thermometer of bridge. For thermocouples: 'TC'
      + probe number + thermocouple number.
     </description>
    </Field_Delimited>
    <Field_Delimited>
     <name>depth</name>
     <field_number>4</field_number>
     <data_type>ASCII_Integer</data_type>
     <maximum_field_length unit="byte">3</maximum_field_length>
     <unit>cm</unit>
     <description>
      Thermometer depth below lunar surface, in cm.
     </description>
    </Field_Delimited>
    <Field_Delimited>
     <name>flags</name>
     <field_number>5</field_number>
     <data_type>ASCII_Integer</data_type>
     <maximum_field_length unit="byte">1</maximum_field_length>
     <description>
      Bitmask marking special features of some data points.
     </description>
    </Field_Delimited>
   </Record_Delimited>
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