This first correction burn was only 2.4 seconds and added about  velocity prograde (in the direction of travel).
ðɪs fˈɜːst kɚɹˈɛkʃən bˈɜːn wʌz ˈoʊnli tˈuː.fˈoːɹ sˈɛkəndz ænd ˈædᵻd ɐbˌaʊt vəlˈɑːsᵻɾi pɹˈoʊɡɹeɪd ɪnðə dᵻɹˈɛkʃən ʌv tɹˈævəl.