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        <observations epoch_first="Wed Jan  4 23:00:00 2017"
                      epoch_last="Wed Jan  4 23:59:59 2017"
                      epochs="3600"
                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
                obs_expected="35461"
                obs_have="27843"
                obs_ratio="78.52" />
          <mask elevation="10 degrees"
                obs_expected="27937"
                obs_have="27791"
                obs_ratio="99.48" />
          <mask elevation="15 degrees"
                obs_expected="22513"
                obs_have="22513"
                obs_ratio="100.00" />
        </observations>
      </control>
    </file>
  </station>
</QC>
