we would initialize the computer with data, what we called the vector, the velocity data. we'd manage the communications, we'd operate the recorders. but basically these were all what i'd say satellite services so that the crew wasn't bothered with the routine, the mundane. they could do the thing that they'd been placed up there to do, which was accomplish the flight test and go for the objectives. >> and actually make a landing in a safe place, as was proved rather rapidly later on. getting back to 9 for a moment, how did the crew split up? were there two aboard the command module? >> we had the jim mcdivitt and rusty shrikert were the crewmen that moved into the lunar module. apollo 9 had several aspects we hadn't faced on a mission before. once the spacecraft had separated the lunar module from the command module, they had to come back together because the lunar module was incapable of re-entering the earth's atmosphere. and through this process we had accomplished and were testing many of the rescue rendezvous sequences that we might need to use later on in the mission