 The last major event before Lunar Orbit Insertion (LOI) was a second mid-course correction. It was in retrograde (against direction of travel) and slowed the spacecraft down by 2.0 ft / s (0.61 m / s), effectively lowering the closest distance that the spacecraft would pass the moon. At exactly 61 hours after launch, about 24,200 miles (38,900 km) from the Moon, the crew burned the RCS for 11 seconds. They would now pass 71.7 miles (115.4 km) from the lunar surface.
