The success of the lunar probe Chang’E-1 is the third milestone in the history of china’s space industry. Information technology is widely used in the process of the management, design,manufacture and test of the probe Change’E-1, which plays a very important role for the efficient and high-quality accomplishment of the probe Chang’E-1. The primary characteristics of Chang’E-1 are summarized in this paper, and the application and benefits of information technology for the development of Chang’E-1 are reviewed. The application of information technology in on-board facility, mainly in GNC system, is expounded in detail. In the end, the application of information technology in the course of flight control is introduced.

Spacecraft attitude and orbit control techniques are critical in the spacecraft development and play a very important role in implementing the complicated spacecraft control for advanced flight missions．This paper reviews recent head way of spacecraft control at home and abroad，and discusses the development of spacecraft control in formation flight，autonomous rendezvous and docking，complicated spacecraft control and on through several examples．Finally，on the basis of revealing the recent trend in research and development of the spacecraft control，some proposals for developing spacecraft guidance，navigation and control in China are presented．

The single-gimbal control momentum gyro(SGCMG)is an ample power inertial actuator used for large structure spacecrafts．The thermal characteristic of SGCMG is not only the foundational influencing factor to its performance，but also an important issue to be considered in the thermal control design of the spacecraft．In this paper，a thermal balance test and the related measurement results for a 200Nms single--gimbal control momentum gyro have been introduced．161 thermometers are laid at different position on the inner and outer surface of the tested device．Under several different thermal vacuum conditions，the device has been controlled to run for enough time to reach the thermal-balance state．The measured temperature data of the 1 6 1 thermometers and the performance data of the device have been recorded．The measurement results reveal the temperature distributions of the device operated under different conditions，and show no evident dependence of the performance of the device on the environmental temperature condition．