TITLE: GCN CIRCULAR NUMBER: 16361 SUBJECT: GRB 140606A: BOOTES-2 optical upper limit DATE: 14/06/07 08:09:09 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia M. Jelinek, R. Cunniffe, A. González-Rodríguez, S. Jeong, O. Lara-Gil, S. R. Oates, J. C. Tello (IAA-CSIC Granada), J. Gorosabel (IAA-CSIC, UPV-EHU) and A. J. Castro-Tirado (IAA-CSIC, ISA-UMA), report: "Following the detection of GRB 140606A by Swift (Stroh et al., GCNC 16353), the 0.6m TELMA robotic telescope at the BOOTES-2 astronomical station Malaga (Spain), observed the GRB location under non optimal weather conditions. A coadd of 105 images (60s each, i’-band filter) taken starting at 20:46 UT and ending at 01:33 UT (i.e. 10 hr post burst) reveals no optical afterglow down to 18.8 mag."