<p>The currently operational geostationary orbit satellites in Korea utilize seven thrusters for tasks such as attitude control, orbit maintenance, and wheel offloading missions. Three thrusters in charge of roll and pitch attitude control as well as northward orbit maintenance are positioned on the same side as the solar panels. This configuration leads to plume disturbance during thruster operation, as the exhaust interferes with the solar panels, potentially impairing thrust performance, particularly during northward orbit maintenance maneuvers. Thus, orbit maintenance commands must account for this disturbance. In the satellite design phase, accurately calculating plume disturbance values for northward orbit maintenance is essential. This study aims to validate the plume disturbance values during northward orbit maintenance by comparing them with actual satellite operational data. To accomplish this objective, simulations incorporating plume disturbance are executed to examine the attitude control characteristics. As a result, it is confined that the observations in the simulations correspond with the actual operational data of the satellite.</p>