Gemini 2 launched a little after 9 o'clock in the morning on January 16, 1965. Except for the thinner heat shield, the spacecraft was the same as the one that would carry astronauts on later missions. It was pressurized as it would be on a manned flight. It even had a crew of sorts. Two "simulated astronauts" made of sequencers, batteries, cameras, lights, instrumentation, a timer, and a tape recorder were installed in the ejection seats. These machine men managed all the things a crew would, and also recorded data points that would be pertinent for future manned missions like launch vibrations and cabin temperatures.