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                obs_have="25152"
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      </control>
      <control date="Fri May  4 07:23:17 2012"
               level="3">
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                         time_creation="Wed May  2 00:56:55 2012"
                         time_modification="Thu Apr  5 00:08:57 2012" />
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                      epochs_ratio="100.00">
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          <mask elevation="10 degrees"
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  </station>
</QC>
