The SS Conestoga was a Earth colony ship built specifically for the colonization of Terra Nova, a nearby class M planet. It was commanded by Captain Mitchell.
Launched in 2069, the Conestoga took nine years, travelling just above warp 1 to reach Terra Nova. Once the Conestoga reached the planet, in 2078, its modules were dismantled to form the colony's initial structures. (ENT: "Terra Nova")