Abstract
Reaction wheel assemblies have been applied for the attitude control of satellites since the dawn of the space exploration era. This presentation demonstrates how reaction wheel assemblies can be simulated in GODOT while taking advantage of its automatic differentiation and time evaluable features. In particular, time evaluables for the reaction wheel angular momentum and gravity gradient of a planet will be added so as to expand upon the classic form of Euler’s equations available in GODOT, thereby increasing the fidelity of the attitude simulations. Time evaluables and automatic differentiation features will be also applied for generating minimum-effort slew manoevres of a rigid spacecraft equipped with a tetrahedral reaction wheel assembly around Jupiter.