Firstly, aiming at the problem that the TLE update is not timely and the accuracy of track recursion is low, A low cost satellite measurement and control system (LCTTC) is proposed, which uses the measured data of satellite GPS to correct the target orbit in the station center coordinate system, so as to improve the tracking accuracy; secondly, using the RSSI function of the receiver, a method to remotely obtain the sensitivity of unattended LCTTC and evaluate its performance is given; and the method of obtaining state information such as signal-to-noise ratio and transmission power, which can monitor and diagnose the real-time task process of the satellite, and reduce the troubleshooting time.