<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<?xml-model href="http://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"?>

<Product_SPICE_Kernel xmlns="http://pds.nasa.gov/pds4/pds/v1" 
    xmlns:lro="http://pds.nasa.gov/pds4/mission/lro/v1" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1 http://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">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:lro_radioscience:spice_kernels:lro_es_53_grgm900c_l600.bsp</logical_identifier>
    <version_id>1.0</version_id>
    <title>lro_es_53_grgm900c_l600.bsp</title>
    <information_model_version>1.17.0.0</information_model_version>
    <product_class>Product_SPICE_Kernel</product_class>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2024-05-22</modification_date>
        <version_id>1.0</version_id>
        <description>Initial PDS4 version</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Context_Area>
    <Time_Coordinates>
      <start_date_time>2016-11-30T04:30:00Z</start_date_time>
      <stop_date_time>2017-01-04T21:30:00Z</stop_date_time>
    </Time_Coordinates>
    <Primary_Result_Summary>
      <purpose>Observation Geometry</purpose>
      <processing_level>Derived</processing_level>
    </Primary_Result_Summary>
    <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>
      <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>
    <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_version_id>V1.0</lro:product_version_id>
        <lro:mission_phase_name>SECOND EXTENDED SCIENCE MISSION</lro:mission_phase_name>
        <lro:producer_institution_name>NASA/GODDARD SPACE FLIGHT CENTER</lro:producer_institution_name>
      </lro:LRO_Parameters>
    </Mission_Area>
  </Context_Area>
  <File_Area_SPICE_Kernel>
    <File>
      <file_name>lro_es_53_grgm900c_l600.bsp</file_name>
      <creation_date_time>2017-06-01T00:00:00</creation_date_time>
    </File>
    <SPICE_Kernel>
      <offset unit="byte">0</offset>
      <parsing_standard_id>SPICE</parsing_standard_id>
      <description>
        SPICE kernel file containing spacecraft and target ephemeris data,
     providing the position and velocity of the spacecraft as a function of
     time. This ephemeris data is incorporated into LOLA data products.  

     These SPICE kernel files are based on a revised lunar gravity field 
     solution in spherical harmonics to degree and order 900 with a power law 
     constraint applied when the degree exceeds 600 [LEMOINEETAL2014].  The 
     model, GRGM900C, and the kernel files are developed by GRAIL team members
     and the LOLA Science team at the Goddard Space Flight Center.

     For information specific to SPK formats and tools, please visit 
     http://naif.jpl.nasa.gov. 
      </description>
      <kernel_type>SPK</kernel_type>
      <encoding_type>Binary</encoding_type>
    </SPICE_Kernel>
  </File_Area_SPICE_Kernel>
</Product_SPICE_Kernel>
