The work done is zero.
Reason : The centripetal force acting on the satellite is perpendicular to the displacement.
As we know, $\mathrm{W}=\mathrm{FS}\cos \mathit{\theta }\because \mathit{\theta }={90}^{\circ }$
$\Rightarrow \cos {90}^{\circ }=0,\Rightarrow \mathrm{W}=0$
so the work done will be zero.