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        <observations epoch_first="Sun Feb 24 23:00:00 2019"
                      epoch_last="Sun Feb 24 23:59:59 2019"
                      epochs="3600"
                      epochs_ratio="100.00">
          <mask elevation="03 degrees"
                obs_expected="45930"
                obs_have="42106"
                obs_ratio="91.67" />
          <mask elevation="10 degrees"
                obs_expected="36084"
                obs_have="36026"
                obs_ratio="99.84" />
          <mask elevation="15 degrees"
                obs_expected="30764"
                obs_have="30764"
                obs_ratio="100.00" />
        </observations>
      </control>
    </file>
  </station>
</QC>
