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      <control date="Mon Oct 18 04:12:48 2021"
               level="3">
        <file_statistics latency="00:08:28"
                         size="6650946"
                         time_creation="Fri Oct 15 01:52:55 2021"
                         time_modification="Sun Sep 19 00:08:27 2021" />
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                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
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          <mask elevation="15 degrees"
                obs_expected="26751"
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  </station>
</QC>
