<?xml version="1.0" encoding="utf-8"?>
<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1C00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<Product_Observational 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_1C00.xsd">
 <Identification_Area>
  <logical_identifier>urn:nasa:pds:a15_17_hfe_concatenated:data:a15p2_depth</logical_identifier>
  <version_id>1.0</version_id>
  <title>Apollo 15 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 1971-1975 for all subsurface sensors of Apollo
    15 probe 2 in this bundle's 'depth' format. It includes data from various
    products in PDS3 bundle A15A-L-HFE-3-THERMAL-CONDUCTIVITY-V1.0 and PDS4
    collection urn:nasa:pds:a15hfe_calibrated_arcsav:data.
   </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>1971-07-31T19:52:36.000Z</start_date_time>
   <stop_date_time>1975-06-30T23:50:41.779Z</stop_date_time>
  </Time_Coordinates>
  <Investigation_Area>
   <name>Apollo 15</name>
   <type>Mission</type>
   <Internal_Reference>
    <lid_reference>urn:nasa:pds:context:investigation:mission.apollo_15</lid_reference>
    <reference_type>data_to_investigation</reference_type>
   </Internal_Reference>
  </Investigation_Area>
  <Observing_System>
   <Observing_System_Component>
    <name>APOLLO 15 LUNAR SURFACE EXPERIMENTS PACKAGE</name>
    <type>Spacecraft</type>
    <Internal_Reference>
     <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.a15a</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.a15a</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:a15hfe_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>A15A-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>
 </Reference_List>
 <File_Area_Observational>
  <File>
   <file_name>a15p2_depth.tab</file_name>
   <file_size unit="byte">4235559</file_size>
   <records>92029</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>a15p2_depth</name>
   <offset unit="byte">27</offset>
   <parsing_standard_id>PDS DSV 1</parsing_standard_id>
   <records>92028</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_Real</data_type>
     <maximum_field_length unit="byte">2</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_Real</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>
  </Table_Delimited>
 </File_Area_Observational>
</Product_Observational>
