Around two weeks after getting back to their land base, Keith was mostly done with how he wanted to improve the 'Rocket assembler'. There was still a bit of optimization left that he wanted to accomplish, but his friends on the EOSS were all waiting for him to launch supplies up there.
He could not delay the construction of the rocket any further, as the situation would turn really dire if the changes he made to the assembler turned out defective. According to him, there only was about a month of oxygen left for the four of them when he left the EOSS two weeks ago. Since he spent all this time down there, leaving his station with no supply in the meantime, it essentially meant that the rest of Spacol members only had half of the remaining time as oxygen supply.
