Difference rate of the targeted tesseral and sectoral coefficient solutions in the case of the m₀ = 9 weak-field dynamo. The targeted coefficients are , , , and . The red lineboxes drawn on top of the chart figure, with legends e, f and g, denote the candidate mission schedules that successfully detect the weak-field dynamo. Explanations of the layout of this chart are the same as in the caption of Fig. 5.