<?xml version='1.0' encoding='us-ascii'?>
<param xml:id="cass_b_rtn1_phi">
    <get>
      <amdaParam name="cass_b_rtn1" />
    </get>
    <process>180+RAD2DEG*atan2(-$cass_b_rtn1[1],-$cass_b_rtn1[0])</process>
    <output />
  </param>