The Apollo 11 crew
It was Saturday, 21 December 1968, and some 2 hours 27 minutes into the mission when astronaut Mike Collins made the call, “Apollo 8, you’re Go for TLI.” This cryptic one-liner relayed the momentous decision that Frank Borman, Jim Lovell and Bill Anders were cleared to attempt the translunar injection (TLI) manoeuvre that would make them the first humans to head out to the vicinity of the Moon. If all went to plan, in three days the spacecraft would enter lunar orbit to conduct a reconnaissance for the missions that would follow, one of which would hopefully accomplish the challenge made by President John F. Kennedy on 25 May 1961“to achieving the goal, before this decade is out, of landing a man on the Moon, and returning him, safely, to the Earth”.
KeywordsGuidance Technique Lunar Orbit Momentous Decision Orbital Rendezvous Translunar Injection
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