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          <mask elevation="10 degrees"
                obs_expected="25850"
                obs_have="10686"
                obs_ratio="41.34" />
          <mask elevation="15 degrees"
                obs_expected="21275"
                obs_have="8758"
                obs_ratio="41.17" />
        </observations>
      </control>
    </file>
  </station>
</QC>
