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<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_1L00.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:clementine1_bistatic:geometry:betazer1</logical_identifier>
    <version_id>1.0</version_id>
    <title>Clementine 1 Intermediate and Reduced Bistatic Radar: betazer1.tab</title>
    <information_model_version>1.21.0.0</information_model_version>
    <product_class>Product_Observational</product_class>
    <Citation_Information>
      <publication_year>1999</publication_year>
      <description>Coordinates for backscatter point (beta = 0) 
 on lunar surface as a function of time. Given as latitude and longitude 
 versus time when the backscatter point was between 80S and 90S on orbit 
 234 (9 April 1994). Computed at Stanford University using programs 
 BSRTRAJ, BSRGEOM, and OUT2MAT and assuming a spherical Moon with radius 
 1737.4 km.</description>
    </Citation_Information>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2024-04-23</modification_date>
        <version_id>1.0</version_id>
        <description>Product migrated to PDS4 from PDS3.</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Observation_Area>
    <Time_Coordinates>
      <start_date_time xsi:nil="true" nilReason="inapplicable"/>
      <stop_date_time xsi:nil="true" nilReason="inapplicable"/>
    </Time_Coordinates>
    <Investigation_Area>
      <name>Deep Space Program Science Experiment</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.deep_space_program_science_experiment</lid_reference>
        <reference_type>data_to_investigation</reference_type>
        <comment>Clementine 1</comment>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <Observing_System_Component>
        <name>Clementine 1</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.clem1</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>Radio Science Subsystem</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:clem1.rss</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>
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      <type>Satellite</type>
      <Internal_Reference>
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        <reference_type>data_to_target</reference_type>
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    </Target_Identification>
  </Observation_Area>
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    <File>
      <file_name>betazer1.tab</file_name>
    </File>
    <Table_Character>
      <name>BETA ZERO TRACK</name>
      <offset unit="byte">0</offset>
      <records>72</records>
      <description>Table gives track of beta = 0 point at one second 
 spacing during 71 seconds when point was closest to lunar south pole. 
 First column (time) is ASCII integer; second and third columns give 
 latitude and longitude as ASCII real numbers. Columns are delimited by 
 commas. Data require 32 bytes; each row ends with a carriage-return 
 line-feed pair.</description>
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        <fields>3</fields>
        <groups>0</groups>
        <record_length unit="byte">34</record_length>
        <Field_Character>
          <name>TIME</name>
          <field_number>1</field_number>
          <field_location unit="byte">1</field_location>
          <data_type>ASCII_Integer</data_type>
          <field_length unit="byte">7</field_length>
          <unit>second</unit>
          <description>Time in seconds from 1999-04-09T00:00:00 UTC at 
 DSS 14. Table gives lunar coordinates as they would 
 have been seen by an observer on Earth.</description>
        </Field_Character>
        <Field_Character>
          <name>LATITUDE</name>
          <field_number>2</field_number>
          <field_location unit="byte">9</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <unit>degree</unit>
          <description>Selenocentric latitude of the lunar backscatter point 
 seen by an observer at DSS 14 at TIME.</description>
        </Field_Character>
        <Field_Character>
          <name>LONGITUDE</name>
          <field_number>3</field_number>
          <field_location unit="byte">21</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">10</field_length>
          <unit>degree</unit>
          <description>Selenocentric east longitude of the lunar backscatter 
 point as seen by an observer at DSS 14 at TIME.</description>
        </Field_Character>
      </Record_Character>
    </Table_Character>
  </File_Area_Observational>
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    <File>
      <file_name>betazer1.lbl</file_name>
    </File>
    <Stream_Text>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS3</parsing_standard_id>
      <description>Original PDS3 label</description>
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