As circunstâncias do episódio implicam que foi abandonado em 1969 (ou logo em seguida; grifo meu):
A implicação muito strong é que a raça humana rapidamente matou todo o Silêncio ainda na Terra, o que naturalmente levaria ao navio no telhado de Craig (que ainda não é o telhado de Craig, porque isso é em 1969, enquanto "The Lodger"). é obviamente contemporâneo para transmitir data) sendo abandonado.Doctor: You just raised an army against yourself and now, for a thousand generations, you're going to be ordering them to destroy you every day. How fast can you run? Because today's the day the human race throw you off their planet.
Doctor Who Series 6 Episode 2: "Day of the Moon"
Steven Moffat praticamente confirmou isso em uma edição de 2014 da Doctor Who Magazine , esclarecendo que o navio visto em "The Lodger" era um navio abandonado da ocupação Silence:
David Elham asks: In The Lodger we see a TARDIS-type machine on top of Craig's flat. Then, in The Impossible Astronaut, it appears again, occupied by the Silence. Was it actually a TARDIS or something else? Will we ever find out?
Those were Silence ships. That's how they arrived on Earth, and where they hung out and had parties and games of forget-me-not (is that a game?). So the one the Doctor found in The Lodger was an abandoned ship from the Silence occupation that was in the Earth's past, but - at that point - the Doctor's future. You see it all makes perfect sense if you watch it in the wrong order - he said, accidentally summing up his entire career in the most damning and wretched way.
Doctor Who Magazine #475