<?xml version="1.0"?>
<param>
  <args>
    <group name='Spacecraft'><value>MEX</value><value>MAVEN</value>
                            <value>MGS</value>
    </group>  
     <group name='Sampling'><value>60</value><value>10</value>
     <value>5</value><value>2</value><value>1</value>
    </group>
  </args>
</param>