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      </control>
      <control date="Fri Jun  1 02:09:53 2018"
               level="3">
        <file_statistics latency="00:02:05"
                         size="5560277"
                         time_creation="Tue May 29 01:52:13 2018"
                         time_modification="Thu May  3 00:02:04 2018" />
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                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
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                obs_have="40311"
                obs_ratio="91.79" />
          <mask elevation="10 degrees"
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          <mask elevation="15 degrees"
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                obs_have="36569"
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  </station>
</QC>
