Fig. 10

Relationship between sensor non-orthogonal coordinates and the spacecraft reference frame, as well as the definitions of the misalignment angles, α and β. a Angles of measurement directions in an orthogonal reference frame represented by Φ_X, Φ_Y, Φ_Z, Θ_X, Θ_Y, and Θ_Z are determined in the ground calibration. b O₁ is defined as an orthogonal coordinate that has the same X-direction and coplanar X–Y with the sensor. c Sensor misalignment is expressed by inclination angles α and β of O₁ in the reference coordinate system with respect to the spacecraft spin axis