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<?xml version="1.0" encoding="UTF-8"?>
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    <rdfs:label xml:lang="en">U magnitude</rdfs:label>
    <rdfs:comment xml:lang="en">Johnson U magnitude. The Johnson U band is a standard passband in the ultraviolet area. The central wavelength is 365nm and the bandwidth is 70nm.  The filter to be used is the Corning 9863 filter.</rdfs:comment>
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