You want to prepare your spacecraft for the maneuvers you will need to perform when reaching Mars. To do so$,$ you

have to rotate the spacecraft by $180$ degrees. For that rotation, you will use a $n=4$ attitude thrusters per burn.

$1-$ What is the minimum total maneuver time $($in seconds$)$ to slew the spacecraft by $180?($assume that the center of mass

is in the middle of the cube$)$

$56$

The spacecraft is covered with black epoxy $=0\mathrm{.}95,lon=0\mathrm{.}85.$

$2-$ What will be it's temperature $($in Celsius degrees$)$ when reaching Mars, knowing that only one of its faces is illuminated

by the Sun, and that the heat flow is homogeneously distributed?

$-65$

Power generated inside the spacecraft can be considered as input power for the radiation balance.

$3-$ How much power $($in W$)$ should be dissipated inside the spacecraft to acheive $0C?$

$7575\mathrm{.}201$

$4-$ If you can't have that power dissipation on board, you could typically choose another coating. What property should it

have? $($choose all correct answers$)$