<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1I00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/ctli/v1/PDS4_CTLI_1I00_2000.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>

<Product_Context
    xmlns="http://pds.nasa.gov/pds4/pds/v1"
    xmlns:pds="http://pds.nasa.gov/pds4/pds/v1"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:ctli="http://pds.nasa.gov/pds4/ctli/v2"
    xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1 https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1I00.xsd
                        http://pds.nasa.gov/pds4/ctli/v2 https://pds.nasa.gov/pds4/ctli/v1/PDS4_CTLI_1I00_2000.xsd">
    
    <Identification_Area>
        <logical_identifier>urn:nasa:pds:context:instrument:nh.mvic</logical_identifier>
        <version_id>2.0</version_id>
        <title>Multispectral Visible Imaging Camera (MVIC) Instrument on New Horizons</title>
        <information_model_version>1.18.0.0</information_model_version>
        <product_class>Product_Context</product_class>
        <Alias_List>
            <Alias><alternate_title>urn:nasa:pds:context:instrument:mvic.nh</alternate_title></Alias>  <!-- deprecated LID -->
            <Alias>
                <alternate_id>MVIC</alternate_id>
                <alternate_title>MVIC</alternate_title>
            </Alias>
            <Alias>
                <alternate_title>Multispectral Visible Imaging Camera (MVIC)</alternate_title>
            </Alias>
        </Alias_List>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2024-04-19</modification_date>
                <version_id>2.0</version_id>
                <description>
                    Updated by SBN:Tilden Barnes during PDS migration of the New Horizons data archive.
                    (1) Updated title.
                    (2) Removed old and added new alias.
                    (3) Added commented out nh.ralph internal reference.                    
                    (4) Added DOI information to external references where found and updated reference text and descriptions.
                    (5) Summarized Instrument_Host:description and moved/edited the rest into a created overview document that gives more breadth.
                    (6) Added CTLI dictionary and updated instrument type lists.
                </description>
            </Modification_Detail>
            <Modification_Detail>
                <modification_date>2021-02-24</modification_date>
                <version_id>1.0</version_id>
                <description>
                    Changed inst LIDs from
                      u:n:p:c:i:instID.scID to
                      u:n:p:c:i:scID.instID
                    And per "Guide toPDS4 Context Products" v1.7,
                    changed all lidvid_reference to lid_reference
                </description>
            </Modification_Detail>
        </Modification_History>
    </Identification_Area>

    <Reference_List>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:nh_documents:ralph:mvic_inst_overview</lid_reference>
            <reference_type>instrument_to_document</reference_type>
            <comment>Overview document for the MVIC instrument on New Horizons.</comment>
        </Internal_Reference>
        <Internal_Reference> 
            <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.nh</lid_reference>
            <reference_type>instrument_to_instrument_host</reference_type>
        </Internal_Reference>
        <!-- SBN-TB:  Waiting on addition to standards to add this Instrument Package connection. Text below will need to be updated.
        <Internal_Reference> 
            <lid_reference>urn:nasa:pds:context:[TBD]:nh.ralph</lid_reference>
            <reference_type>context_to_associate</reference_type> 
            <comment>Ralph is the instrument package for the LEISA and MVIC instruments</comment>
        </Internal_Reference> -->
        <Internal_Reference> 
            <lid_reference>urn:nasa:pds:nh_documents:ralph:ralph_ssr</lid_reference>
            <reference_type>instrument_to_document</reference_type>
            <comment>Preprint of SSR paper Reuter et al. (2008) for Ralph LEISA/MVIC instruments.  Published paper found at https://doi.org/10.1007/s11214-008-9375-7</comment>
        </Internal_Reference>
        <External_Reference>
            <doi>10.1117/12.617901</doi>
            <reference_text>
                Reuter, D., A. Stern, J. Baer, L. Hardaway, D. Jennings, S. McMuldroch, J. Moore, C. Olkin, R. Parizek, D. Sabatke, J. Scherrer, J. Stone, J. VanCleeve, and L. Young, Ralph: a visible/infrared imager for the New Horizons Pluto/Kuiper Belt Mission, Proc. SPIE 5906, Astrobiology and Planetary Missions, 59061F, 2005. https://doi.org/10.1117/12.617901
            </reference_text>
            <description>Early description of the Ralph LEISA/MVIC instruments.</description>
        </External_Reference>
        <External_Reference>
            <doi>10.1007/s11214-008-9375-7</doi>
            <reference_text>
                Reuter, D.C., S.A. Stern, J. Scherrer, D.E. Jennings, J. Baer, J. Hanley, L. Hardaway, A. Lunsford, S. McMuldroch, J. Moore, C. Olkin, R. Parizek, H. Reitsma, D. Sabatke, J. Spencer, J. Stone, H. Throop, J. Van Cleve, G.E. Weigle, and L.A. Young, Ralph: A Visible/Infrared Imager for the New Horizons Pluto/Kuiper Belt Mission, Space Sci. Rev., Volume 140, Numbers 1-4, pp. 129-154, 2008.  https://doi.org/10.1007/s11214-008-9375-7 
            </reference_text>
            <description>Published SSR paper for Ralph LEISA/MVIC instruments.  Preprint available within PDS at urn:nasa:pds:nh_documents:ralph:ralph_ssr.</description>
        </External_Reference>
    </Reference_List>
    
    <Instrument>
        <name>Multispectral Visible Imaging Camera</name>
        <Type_List_Area>
            <ctli:Type_List>
                <ctli:type>Imager</ctli:type>
            </ctli:Type_List>
        </Type_List_Area>
        <description>
    MVIC is an imager that operates at both visible and near-infrared
    wavelengths using seven separate Charge-Coupled Device detectors
    (CCDs).  Four CCDs have color filters (methane, red, blue and
    near-infrared) for producing color maps and three CCDs have
    panchromatic filters for observations where maximum sensitivity to
    faint light levels is required.  In all cases, the light passes from
    the telescope through a filter and is focused onto the CCDs.
 
    MVIC is integrated with another instrument, LEISA, into a composite
    instrument named Ralph, which supplies A/D conversion, command and
    data handling, and power to both MVIC and LEISA.
        </description>
    </Instrument>
</Product_Context>
