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                      epoch_last="Sat Mar 31 23:59:59 2007"
                      epochs="3563"
                      epochs_ratio="98.97">
          <mask elevation="03 degrees"
                obs_expected="38226"
                obs_have="35569"
                obs_ratio="93.05" />
          <mask elevation="10 degrees"
                obs_expected="32293"
                obs_have="31940"
                obs_ratio="98.91" />
          <mask elevation="15 degrees"
                obs_expected="27051"
                obs_have="26741"
                obs_ratio="98.85" />
        </observations>
      </control>
    </file>
  </station>
</QC>
