The Key Technology of High-Stability Attitude Control and High-Precision Thermal Control

The key technology of high stability attitude control and high precision thermal control of CHES satellite undertakes the task of telescope stabilized imaging during the observation of CHES mission, and is responsible for the telescope pointing requirement of 0.07 arcsec pointing accuracy and 0.0036/0.02s high stability inertial directional observation, and the requirement that the temperature control accuracy should be less than 45 mK during each observation time (2 hours).

Telescope’s thermal control design diagram