Method and device for judging effectiveness of satellite magnetometer

The invention relates to the technical field of spacecraft attitude control, in particular to a method and a device for judging the effectiveness of a satellite magnetometer. The method comprises the following steps of S1, judging whether data communication of the on-satellite magnetometer is normal or not; s2, acquiring and judging whether an internal mark of the magnetometer is valid or not; s3, acquiring a magnetometer data packet, and judging whether a magnetometer data source code is updated or not; s4, judging whether the magnetometer data is continuous or not; s5, judging whether the data of each axis of the magnetometer exceeds the limit or not; s6, judging whether the module value of the magnetic field intensity of the magnetometer exceeds the limit or not, and if the module value does not exceed the limit, outputting that the magnetometer is effective; and S7, outputting that the magnetometer is invalid, outputting an abnormal reason, and ending the process. 本发明涉及航天器姿态控制技术领域，更具体的说，涉及一种卫星磁强计自身有效性判断方法