Fig. 1. Overall layout of the satellite

Fig. 2. Heat flow analysis results

Fig. 3. Temperature control of reflective mirror

Fig. 4. Temperature fluctuation of mirror heater

Fig. 5. Temperature control of truss

Fig. 6. Temperature control of focal plane

Fig. 7. Installation of the phase change material

Fig. 8. Heat dissipation of electronic components

Fig. 9. Numerical analysis model

Fig. 10. Thermal balance test model

Fig. 11. The situation of thermal balance test

Fig. 12. The distribution of heat flux meters

Fig. 13. Temperature of the mirror in orbit

Fig. 14. Temperature of truss in orbit

Fig. 15. Temperature of CCD