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          <mask elevation="03 degrees"
                obs_expected="32052"
                obs_have="31579"
                obs_ratio="98.52" />
          <mask elevation="10 degrees"
                obs_expected="30629"
                obs_have="30333"
                obs_ratio="99.03" />
          <mask elevation="15 degrees"
                obs_expected="29114"
                obs_have="28850"
                obs_ratio="99.09" />
        </observations>
      </control>
    </file>
  </station>
</QC>
