Compounding these concerns, American reconnaissance satellites observed a mockup N1 being rolled to the pad at Baikonur in November 1967, with more activity in 1968.
kɑːmpˈaʊndɪŋ ðiːz kənsˈɜːnz, ɐmˈɛɹɪkən ɹᵻkˈɑːnɪsəns sˈæɾəlˌaɪts əbzˈɜːvd ɐ mˈɑːkʌp ˈɛn wˈʌn bˌiːɪŋ ɹˈoʊld tə ðə pˈæd æt bˈeɪkənˌɜːɹ ɪn noʊvˈɛmbɚ nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɛvən, wɪð mˈoːɹ æktˈɪvᵻɾi ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti ˈeɪt.