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Off Course
- Chuck Dietrich noticed Apollo 13's trajectory was off after the PC+2 burn, risking a deadly skip off the atmosphere.
- Their planned perigee was 87 miles, but a safe re-entry required a perigee of around 20 miles.
Manual Course Correction
- Apollo 13's crew faced a unique challenge: performing a course correction without their computer.
- They used the Earth's terminator and the sun for alignment, and Jim Lovell's wristwatch for timing.
A Calm Correction
- Fred Haise downplayed the difficulty of the manual burn.
- He stated they didn't deviate even one degree, contrasting with the dramatized movie portrayal.