Thermal Design and Verification of Spherical Scientific Satellite Q-SAT

Table 4

Temperatures of devices inside Q-SAT.

Device	Allowing range (°C)	Analysis result in WHC (°C)	Analysis result in WCC (°C)	Test result (°C)
PCU	-10~+50	21~23	15~21	20.4
Batteries	0~+40	15~21	9~11	22.7
OBC	-40~+85	13~27	3~17	18.1
ACC	-40~+85	13~27	3~17	15.8
Motherboard	-40~+85	8~21	-3~10	12.5
USB	-20~+65	32~47	20~35	36.9
D-F GNSS	-25~+55	18~24	6~11	14.1
Magnetometer	-40~+85	15~20	3~7	11.0
Flywheel	-30~+60	32~33	7~9	11.3
ISM	-30~+60	10~29	-2~3	20.3
IMU	-30~+50	16~22	6~10	21.3
S-F GNSS	-25~+50	12~22	0~9	13.4
MA	-25~+50	16~25	2~6	17.0