Spacecraft are commonly spin stabilized in order to keep them from tumbling. The same reason that rifles spin bullets or quarterbacks throw spirals, really. An

Spacecraft are commonly spin stabilized in order to keep them from tumbling. The same reason that rifles spin bullets or quarterbacks throw spirals, really. And yes, it will have attitude control in order to ensure that the three burns (two complete, interplanetary insertion to come) all happen in the correct orientation