Io

Io
Type	Moon
Mass	.01 Earth
Distance to Sun	5.20
Orbital Period	11.83 years
Surface Gravity [m/s2]	1.8
Surface Area	41900000
Outpost	Possible

Io is where players can send additional satellites and landers. The reward to send a satellite to Io nets 160 credits. It is one of the 69 known natural satellites of Jupiter.