The thesis presents a comprehensive MATLAB/Simulink simulation of the AOCS for a service module and fulfils all assignment requirements. Its main strengths are the full mission simulation with Stateflow mode switching, MEKF estimation, cascaded control, payload separation, and a quantitative PD–cascade controller comparison showing a 35% improvement in settling time.

The main results are sufficiently verified against independent reference data and identical simulation conditions.

Some weaknesses remain, including mostly qualitative pointing results, an inconsistency in (K_{p,in}), minor notation and unit errors, incomplete references, shifted figure references and small language issues.

Nevertheless, the work is solid and exceeds the usual scope of a master’s thesis. I recommend it for defense with the grade B. Points proposed by supervisor: 80

The thesis presents the design and MATLAB/Simulink simulation of an AOCS for a service module and fulfils all assignment requirements. Its main strengths are a functional closed-loop Simulink model covering 11 mission modes, implemented MEKF tracking, PD–cascade controller comparison, payload separation, and reaction wheel sizing based on the worst-case GTO perigee condition.

All key artefacts were submitted, including the .slx, .mlx, and MATLAB scripts, making the work largely transferable as an engineering basis.

Some issues should be corrected, especially the mismatch between the simulated actuator saturation and the required wheel torque. A Monte Carlo run and a brief BOM/cost estimate would further improve confidence.
Nevertheless, the work is a solid simulation framework with a real engineering core, and I recommend it for defense with the grade B. Topics for thesis defence:

1. The sizing gives 0.242 Nm per wheel (Eq. 1.30), while the saturation block in Simulink is set to 0.2 Nm. How does the model perform a 180°/600 s slew, and what happens in the simulation when the controller reaches saturation?

Points proposed by reviewer: 85