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        <observations epoch_first="Thu Feb 19 23:00:00 2015"
                      epoch_last="Thu Feb 19 23:59:59 2015"
                      epochs="3600"
                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
                obs_expected="25819"
                obs_have="23325"
                obs_ratio="90.34" />
          <mask elevation="10 degrees"
                obs_expected="23406"
                obs_have="23323"
                obs_ratio="99.65" />
          <mask elevation="15 degrees"
                obs_expected="18095"
                obs_have="18095"
                obs_ratio="100.00" />
        </observations>
      </control>
    </file>
  </station>
</QC>
