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      <control date="Mon Jun 17 04:12:17 2019"
               level="3">
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                         size="6983194"
                         time_creation="Fri Jun 14 01:52:49 2019"
                         time_modification="Sun May 19 00:08:45 2019" />
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                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
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          <mask elevation="15 degrees"
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                obs_have="28170"
                obs_ratio="100.00" />
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  </station>
</QC>
