Calibration of On-board Magnetometers of the SamSat-ION Nanosatellite

This paper presents the calibration of magnetometers of the attitude dynamics and control system of the SamSat-ION nanosatellite. A method of temperature calibration of magnetometers in twelve static positions is proposed. The operability of on-board systems in conditions of temperature difference has been tested. The accuracy of determining the parameters of the temperature dependence of the bias, scale factor and non-orthogonality coefficients of magnetometer sensors is estimated. The main results of ground tests of flight models of on-board systems of the SamSat-ION nanosatellite are presented. The proposed approach ensures reliable operation of the orientation and stabilization system of nanosatellites based on the use of magnetometers when exposed to various temperature gradients.