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          <mask elevation="03 degrees"
                obs_expected="26010"
                obs_have="23484"
                obs_ratio="90.29" />
          <mask elevation="10 degrees"
                obs_expected="21273"
                obs_have="20983"
                obs_ratio="98.64" />
          <mask elevation="15 degrees"
                obs_expected="18303"
                obs_have="18303"
                obs_ratio="100.00" />
        </observations>
      </control>
    </file>
  </station>
</QC>
