This maneuver had to be performed perfectly, and due to orbital mechanics had to be on the far side of the Moon, out of contact with the Earth.
ðɪs mənˈuːvɚ hædtə biː pɚfˈɔːɹmd pˈɜːfɛktli, ænd dˈuː tʊ ˈɔːɹbɪɾəl mᵻkˈænɪks hædtə biː ɔnðə fˈɑːɹ sˈaɪd ʌvðə mˈuːn, ˌaʊɾəv kˈɑːntækt wɪððɪ ˈɜːθ.