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    <Identification_Area>
        <logical_identifier>urn:nasa:pds:context:instrument:mars2020.ecam</logical_identifier>
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        <title>Mars 2020 Engineering Camera Suite (ECAM)</title>
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                <modification_date>2021-01-26</modification_date>
                <version_id>1.0</version_id>
                <description>First version</description>
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        <External_Reference>
            <doi>10.1007/s11214-020-00765-9</doi>
            <reference_text>
                Maki, J.N., Gruel, D., McKinney, C. et al. The Mars 2020 Engineering Cameras 
                and Microphone on the Perseverance Rover: A Next-Generation Imaging System 
                for Mars Exploration. Space Sci Rev 216, 137 (2020).
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        <name>Engineering Camera Suite (ECAM)</name>
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            navigating the Martian terrain and avoiding obstacles therein.  Additionally,
            a CacheCam is used to verify the collection of surface samples acquired
            during the mission.
            The full complement of instruments and cameras contained within the
            Engineering Camera Suite are:
            (1) HazCam: Hazard Avoidance Cameras (six (6) cameras total)
                (a) two front-facing stereo pairs
                (b) one rear-facing stereo pair
            (2) NavCam: Navigation Cameras (one stereo pair mounted to the rover mast)
            (3) CacheCam: Sample Caching System Camera (one single monocular camera system)
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