The location is uncertain because Eagle ascent stage was not tracked after it was jettisoned, and the lunar gravity field is sufficiently non-uniform to make the orbit of the spacecraft unpredictable after a short time.
ðə loʊkˈeɪʃən ɪz ʌnsˈɜːʔn̩ bɪkˈʌz ˈiːɡəl ɐsˈɛnt stˈeɪdʒ wʌz nˌɑːt tɹˈækt ˈæftɚɹ ɪt wʌz dʒˈɛɾɪsənd, ænd ðə lˈuːnɚ ɡɹˈævᵻɾi fˈiːld ɪz səfˈɪʃəntli nˈɑːnjˈuːnɪfˌɔːɹm tə mˌeɪk ðɪ ˈɔːɹbɪt ʌvðə spˈeɪskɹæft ʌnpɹɪdˈɪktəbəl ˈæftɚɹ ɐ ʃˈɔːɹt tˈaɪm.