In Apollo 13, after a 4-minute silence, Thomas Ken Mattingly was working on establishing the connection with the ship. It was true that this astronaut was excluded from the ship crew just several days before the mission because he was believed to have been infected with measles. And it is true that he made a huge contribution to the rescue mission because he knew the ship perfectly. But it was Joseph P. Kerwin who was actually the one who established the connection with the ship.