GCN Circular 17979
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.