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        <observations epoch_first="Sat Mar 31 23:00:00 2007"
                      epoch_last="Sat Mar 31 23:59:59 2007"
                      epochs="3600"
                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
                obs_expected="36344"
                obs_have="27334"
                obs_ratio="75.21" />
          <mask elevation="10 degrees"
                obs_expected="30825"
                obs_have="23625"
                obs_ratio="76.64" />
          <mask elevation="15 degrees"
                obs_expected="26521"
                obs_have="19553"
                obs_ratio="73.73" />
        </observations>
      </control>
    </file>
  </station>
</QC>
