Analysis of the Magnetic Field Data During the Vacuum Thermal Test of the Satellite

The magnetometer designed in this paper is an integral part of the satellite plasma and surface charge risk monitor. Its main function is to predict the discharge current by monitoring the change of magnetic field and compare the magnetic field changes with the possible satellite anomalies. This can be used to study the correlation between the orbital plasma environment and the satellite’s typical charge and discharge events. The system design of the magnetometer and the analysis results of the magnetic field data during the vacuum thermal test of the satellite are introduced in the paper. Analysis results show that the state change of omnidirectional electron detector will cause the change of magnetic field measurement.