This project, titled “One-Axis Attitude Control of a Satellite with a Two-Degree-of-Freedom Solar Tracker,” was conducted by Issa Sepahvand, a PhD student in Aerospace Engineering, as part of the “Spacecraft System Design” course in 2021. In this project, assuming a hypothetical Earth and Sun, the satellite’s solar panels are initially oriented towards the Sun using two servo motors, thereby determining the satellite’s attitude relative to Earth. Then the reaction wheel provides the necessary torque to rotate the satellite body towards the Earth, according to the determined position relative to the Earth. Furthermore, after the satellite is oriented towards the Earth, the solar panels must still be oriented towards the Sun. Once the reaction wheel is activated, the system becomes resistant to a specified level of external disturbances.