<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1H00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/mission/lro/v1/PDS4_LRO_1H00_1020.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/proc/v1/PDS4_PROC_1H00_1210.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>

<Product_Observational xmlns="http://pds.nasa.gov/pds4/pds/v1" 
    xmlns:lro="http://pds.nasa.gov/pds4/mission/lro/v1" 
    xmlns:proc="http://pds.nasa.gov/pds4/proc/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_1H00.xsd
    http://pds.nasa.gov/pds4/mission/lro/v1 https://pds.nasa.gov/pds4/mission/lro/v1/PDS4_LRO_1H00_1020.xsd
    http://pds.nasa.gov/pds4/proc/v1        https://pds.nasa.gov/pds4/proc/v1/PDS4_PROC_1H00_1210.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:lro_lend:data_science_derived:lend_rdr_dld_20210607</logical_identifier>
    <version_id>1.0</version_id>
    <title>LRO LEND derived science product: lend_rdr_dld_20210607</title>
    <information_model_version>1.17.0.0</information_model_version>
    <product_class>Product_Observational</product_class>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2023-05-12</modification_date>
        <version_id>1.0</version_id>
        <description>Migration to PDS4</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Observation_Area>
    <Time_Coordinates>
      <start_date_time>2021-06-07T00:00:00Z</start_date_time>
      <stop_date_time>2021-06-07T23:59:59Z</stop_date_time>
    </Time_Coordinates>
    <Investigation_Area>
      <name>Lunar Reconnaissance Orbiter</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.lunar_reconnaissance_orbiter</lid_reference>
        <reference_type>data_to_investigation</reference_type>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <name>LEND</name>
      <Observing_System_Component>
        <name>Lunar Reconnaissance Orbiter</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.lro</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>Lunar Exploration Neutron Detector for LRO</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:lro.lend</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>
    <Mission_Area>
      <lro:LRO_Parameters>
        <lro:product_type>LEND_RDR_DLD</lro:product_type>
        <lro:product_version_id>1.0</lro:product_version_id>
        <lro:mission_phase_name>FOURTH EXTENDED SCIENCE MISSION</lro:mission_phase_name>
        <lro:spacecraft_clock_start_count>644716799</lro:spacecraft_clock_start_count>
        <lro:spacecraft_clock_stop_count>644803198</lro:spacecraft_clock_stop_count>
      </lro:LRO_Parameters>
    </Mission_Area>
    <Discipline_Area>
      <proc:Processing_Information>
        <Local_Internal_Reference>
          <local_identifier_reference>dld_data_table</local_identifier_reference>
          <local_reference_type>processing_information_to_data_object</local_reference_type>
        </Local_Internal_Reference>
        <proc:Process>
          <proc:Software>
            <proc:Software_Program>
              <proc:name>GEN_LEND_RDR</proc:name>
              <proc:program_version>1.0.0</proc:program_version>
            </proc:Software_Program>
          </proc:Software>
        </proc:Process>
      </proc:Processing_Information>
    </Discipline_Area>
  </Observation_Area>
  <File_Area_Observational>
    <File>
      <file_name>lend_rdr_dld_20210607.dat</file_name>
      <local_identifier>dld_data_table</local_identifier>
      <creation_date_time>2021-11-19T20:03:14</creation_date_time>
    </File>
    <Table_Binary>
      <offset unit="byte">0</offset>
      <records>83729</records>
      <description>This table contains backgrounds and background subtracted neutron
            counting data for each of the nine neutron sensors
            aboard the Lunar Reconnaissance Orbiter (LRO) Lunar
            Exploration Neutron Detector (LEND). Detailed descriptions for the parameters 
            defined below are contained in the LRO_LEND_RDR_SIS document.</description>
      <Record_Binary>
        <fields>25</fields>
        <groups>2</groups>
        <record_length unit="byte">239</record_length>
        <Field_Binary>
          <name>LRO_TIME</name>
          <field_number>1</field_number>
          <field_location unit="byte">1</field_location>
          <data_type>UnsignedMSB8</data_type>
          <field_length unit="byte">8</field_length>
          <description>5 upper bytes of LRO time.</description>
        </Field_Binary>
        <Field_Binary>
          <name>UTC</name>
          <field_number>2</field_number>
          <field_location unit="byte">9</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">23</field_length>
          <description>UTC time at the middle of the collection interval,
            stored as yyyy-mm-ddThh:mm:ss.sss.</description>
        </Field_Binary>
        <Field_Binary>
          <name>LOCAL_HOUR</name>
          <field_number>3</field_number>
          <field_location unit="byte">32</field_location>
          <data_type>UnsignedByte</data_type>
          <field_length unit="byte">1</field_length>
          <description>Local Sun hour at the sub-spacecraft point.</description>
        </Field_Binary>
        <Field_Binary>
          <name>LOCAL_MINUTE</name>
          <field_number>4</field_number>
          <field_location unit="byte">33</field_location>
          <data_type>UnsignedByte</data_type>
          <field_length unit="byte">1</field_length>
          <description>Local Sun minute at the sub-spacecraft point.</description>
        </Field_Binary>
        <Field_Binary>
          <name>LUNARCENTRIC_LATITUDE</name>
          <field_number>5</field_number>
          <field_location unit="byte">34</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <description>Latitude in LUNAR fixed coordinates at the middle of the frame.</description>
        </Field_Binary>
        <Field_Binary>
          <name>LUNARCENTIC_EAST_LONGITUDE</name>
          <field_number>6</field_number>
          <field_location unit="byte">38</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <description>Longitude in Lunar fixed coordinates at the middle of the frame.</description>
        </Field_Binary>
        <Field_Binary>
          <name>COLLECTION_DURATION</name>
          <field_number>7</field_number>
          <field_location unit="byte">42</field_location>
          <data_type>UnsignedMSB4</data_type>
          <field_length unit="byte">4</field_length>
          <unit>s</unit>
          <description>Value of collection time register, length of time in seconds.</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN1_BKGD</name>
          <field_number>8</field_number>
          <field_location unit="byte">46</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for STN1 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN1_COUNTS</name>
          <field_number>9</field_number>
          <field_location unit="byte">50</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in STN1 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>SETN_BKGD</name>
          <field_number>10</field_number>
          <field_location unit="byte">54</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for SETN detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>SETN_COUNTS</name>
          <field_number>11</field_number>
          <field_location unit="byte">58</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in SETN detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN2_BKGD</name>
          <field_number>12</field_number>
          <field_location unit="byte">62</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for STN2 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN2_COUNTS</name>
          <field_number>13</field_number>
          <field_location unit="byte">66</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>km/s</unit>
          <description>Counts gathered in STN2 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN3_BKGD</name>
          <field_number>14</field_number>
          <field_location unit="byte">70</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for STN3 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>STN3_COUNTS</name>
          <field_number>15</field_number>
          <field_location unit="byte">74</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in STN3 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN1_BKGD</name>
          <field_number>16</field_number>
          <field_location unit="byte">78</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN1_COUNTS</name>
          <field_number>17</field_number>
          <field_location unit="byte">82</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in CSETN1 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN2_BKGD</name>
          <field_number>18</field_number>
          <field_location unit="byte">86</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for CSETN2 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN2_COUNTS</name>
          <field_number>19</field_number>
          <field_location unit="byte">90</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in CSETN2 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN3_BKGD</name>
          <field_number>20</field_number>
          <field_location unit="byte">94</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for CSETN3 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN3_COUNTS</name>
          <field_number>21</field_number>
          <field_location unit="byte">98</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in CSETN3 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN4_BKGD</name>
          <field_number>22</field_number>
          <field_location unit="byte">102</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Background counts for CSETN4 detector (counts).</description>
        </Field_Binary>
        <Field_Binary>
          <name>CSETN4_COUNTS</name>
          <field_number>23</field_number>
          <field_location unit="byte">106</field_location>
          <data_type>IEEE754MSBSingle</data_type>
          <field_length unit="byte">4</field_length>
          <unit>counts</unit>
          <description>Counts gathered in CSETN4 detector during frame interval.
            A negative in this column indicates it should not be used.</description>
        </Field_Binary>
        <Group_Field_Binary>
          <group_number>1</group_number>
          <repetitions>16</repetitions>
          <fields>1</fields>
          <groups>0</groups>
          <description>Background counts for all channels of neutron channel of
            Inner Scintillator (counts). The Channels contain data as follows:
            Channel 0 - sum of channels 0 through 5,
            Channel 1 - sum of channel 6,
            Channel 2 - sum of channel 7,
            Channel 3 - sum of channel 8,
            Channel 4 - sum of channel 9,
            Channel 5 - sum of channel 10,
            Channel 6 - sum of channel 11,
            Channel 7 - sum of channel 12,
            Channel 8 - sum of channel 13,
            Channel 9 - sum of channel 14,
            Channel 10 - sum of channel 15,
            Channel 11 - sum of channel 6 through 8,
            Channel 12 - sum of channel 9 through 12,
            Channel 13 - sum of channel 13 through 14,
            Channel 14 - sum of channel 6 through 14,
            Channel 15 - sum of channel 0 through 16</description>
          <group_location unit="byte">110</group_location>
          <group_length unit="byte">64</group_length>
          <Field_Binary>
            <name>SHEN_BCGD</name>
            <field_number>1</field_number>
            <field_location unit="byte">1</field_location>
            <data_type>IEEE754MSBSingle</data_type>
            <field_length unit="byte">4</field_length>
            <unit>counts</unit>
          </Field_Binary>
        </Group_Field_Binary>
        <Group_Field_Binary>
          <group_number>2</group_number>
          <repetitions>16</repetitions>
          <fields>1</fields>
          <groups>0</groups>
          <description>Counts gathered in all channels of neutron channel of 
            Inner Scintillator during frame interval. The Channels contain data as follows:
            Channel 0 - sum of channels 0 through 5,
            Channel 1 - sum of channel 6,
            Channel 2 - sum of channel 7,
            Channel 3 - sum of channel 8,
            Channel 4 - sum of channel 9,
            Channel 5 - sum of channel 10,
            Channel 6 - sum of channel 11,
            Channel 7 - sum of channel 12,
            Channel 8 - sum of channel 13,
            Channel 9 - sum of channel 14,
            Channel 10 - sum of channel 15,
            Channel 11 - sum of channel 6 through 8,
            Channel 12 - sum of channel 9 through 12,
            Channel 13 - sum of channel 13 through 14,
            Channel 14 - sum of channel 6 through 14,
            Channel 15 - sum of channel 0 through 16
            A negative in any channel indicates it should not be used.</description>
          <group_location unit="byte">174</group_location>
          <group_length unit="byte">64</group_length>
          <Field_Binary>
            <name>SHEN_COUNTS</name>
            <field_number>1</field_number>
            <field_location unit="byte">1</field_location>
            <data_type>IEEE754MSBSingle</data_type>
            <field_length unit="byte">4</field_length>
            <unit>counts</unit>
          </Field_Binary>
        </Group_Field_Binary>
        <Field_Binary>
          <name>SUN_ACTIVITY</name>
          <field_number>24</field_number>
          <field_location unit="byte">238</field_location>
          <data_type>UnsignedByte</data_type>
          <field_length unit="byte">1</field_length>
          <description>1 (active sun during frame interval); 
            0 (no active sun during frame interval).</description>
        </Field_Binary>
        <Field_Binary>
          <name>NADIR_POINTING</name>
          <field_number>25</field_number>
          <field_location unit="byte">239</field_location>
          <data_type>UnsignedByte</data_type>
          <field_length unit="byte">1</field_length>
          <description>1 (instrument is nadir pointing); 
            0 (anything other than nadir pointing).</description>
        </Field_Binary>
      </Record_Binary>
    </Table_Binary>
  </File_Area_Observational>
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    <File>
      <file_name>lend_rdr_dld_20210607.lbl</file_name>
    </File>
    <Stream_Text>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS3</parsing_standard_id>
      <description>PDS3 label</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
    </Stream_Text>
  </File_Area_Observational_Supplemental>
</Product_Observational>
