TITLE: GCN CIRCULAR NUMBER: 17979 SUBJECT: GRB 150627A: corection to 17978 DATE: 15/06/28 10:01:04 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov (Lomonosov MSU) I am sorry for mistake. The correct time of the first exposition is 2015-06-27 16:32:07 (43664 s after trigger). I am out from good internet now. So, I did no see UVOT OT detection Paul Kuin et al.,GCN 17977 . The message may be cited.