Propulsion System
The LADEE propulsion system will consist of an orbit control system (OCS) and a reaction control system (RCS). The OCS will provide velocity control along the +Z axis for large velocity adjustments. The RCS will provide three-axis attitude control during burns of the OCS system, and will also provide momentum dumps for the reaction wheels which are the primary attitude control system between OCS burns.
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“I need not say what match I would touch, what system endeavor to blow up; but as I love my life, I would side with the light, and let the dark earth roll from under me, calling my mother and my brother to follow.”
—Henry David Thoreau (1817–1862)