Mars Entry Example MERS engine to standby lanetary approach switch to inertial nay rotate to entry-orient hold attitude Descent engine to“ standby” separate ander (Courtesy of Mitch Ingham. Used with permission.Mars Entry Example engine to standby planetary approach switch to Descent engine to “standby”: off heating 30-60 sec standby separate lander inertial nav rotate to entry-orient & hold attitude (Courtesy of Mitch Ingham. Used with permission.)