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          <mask elevation="03 degrees"
                obs_expected="36202"
                obs_have="35244"
                obs_ratio="97.35" />
          <mask elevation="10 degrees"
                obs_expected="30607"
                obs_have="30401"
                obs_ratio="99.33" />
          <mask elevation="15 degrees"
                obs_expected="26012"
                obs_have="26008"
                obs_ratio="99.98" />
        </observations>
      </control>
    </file>
  </station>
</QC>
