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  <Identification_Area>
    <logical_identifier>urn:nasa:pds:context:investigation:other_investigation.relab_speclib</logical_identifier>
    <version_id>2.2</version_id>
    <title>RELAB Spectral Library</title>
    <information_model_version>1.22.0.0</information_model_version>
    <product_class>Product_Context</product_class>
    <Alias_List>
      <Alias>
        <alternate_id>RELAB</alternate_id>
        <alternate_title>RELAB</alternate_title>
      </Alias>
      <Alias>
        <alternate_title>RELAB Reflectance Spectra Measurements</alternate_title>
      </Alias>
    </Alias_List>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2026-07-07</modification_date>
        <version_id>2.2</version_id>
        <description>Removed duplicate Internal_Reference entries from Reference_List.</description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2024-10-22</modification_date>
        <version_id>2.1</version_id>
        <description>Updates to title, name, description, and references</description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2024-08-22</modification_date>
        <version_id>2.0</version_id>
        <description>
                    Major changes per PDS Editorial Working Group efforts. 
                </description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2019-11-22</modification_date>
        <version_id>0.5</version_id>
        <description>
                Pre-peer-review version. 
                </description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context:facility:laboratory.relab</lid_reference>
      <reference_type>investigation_to_facility</reference_type>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context:instrument:relab.bd-vnir</lid_reference>
      <reference_type>investigation_to_instrument</reference_type>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context:instrument:relab.bc-ftir1</lid_reference>
      <reference_type>investigation_to_instrument</reference_type>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context:instrument:relab.bcf-ftir2</lid_reference>
      <reference_type>investigation_to_instrument</reference_type>
    </Internal_Reference>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context_support:description:relab_description</lid_reference>
      <reference_type>investigation_to_document</reference_type>
      <comment>Detailed documentation about this context product.</comment>
    </Internal_Reference>
    <External_Reference>
      <reference_text>Milliken, R.E., T. Hiroi, and W. Patterson (2016), The NASA Reflectance Laboratory (RELAB) Facility: Past, Present, and Future, LPS XLVII, 
                abstract #2058.
            </reference_text>
      <description>RELAB description.</description>
    </External_Reference>
    <External_Reference>
      <reference_text>NASA RELAB Website: https://sites.brown.edu/relab/</reference_text>
      <description>RELAB webpage.</description>
    </External_Reference>
  </Reference_List>
  <Investigation>
    <name>RELAB Spectral Library</name>
    <type>Other Investigation</type>
    <start_date>1981-02-10</start_date>
    <stop_date xsi:nil="true" nilReason="unknown"/>
    <description>The RELAB Spectral Library is a database of reflectance spectra collected by the NASA Relectance Experiment Laboratory, along with ancillary chemistry and image
            information.
        </description>
  </Investigation>
</Product_Context>
