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      <control date="Sun Feb 23 06:04:52 2020"
               level="3">
        <file_statistics latency="00:10:03"
                         size="7746580"
                         time_creation="Thu Feb 20 01:54:43 2020"
                         time_modification="Sat Jan 25 00:10:02 2020" />
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                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
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          <mask elevation="10 degrees"
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          <mask elevation="15 degrees"
                obs_expected="27727"
                obs_have="27726"
                obs_ratio="100.00" />
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  </station>
</QC>
