AG Phase Overview.  The final four hours prior 
<p>to contact are performed autonomously onboard, beginning 
</p>
with the orbit departure maneuver.
NASA
<a rel="nofollow" class="external free" href="http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140017837.pdf">http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140017837.pdf</a>