TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5092 SUBJECT: GRB 060507: BART limit DATE: 06/05/08 22:12:42 GMT FROM: Martin Jelinek at Inst.Astrophys.Andalucia,Granada Martin Jelinek (IAA Granada), Petr Kubanek (ISDC Versiox and ASU Ondrejov), Rene Hudec, Martin F. Nekola, Filip Munz and Jan Strobl (ASU Ondrejov) report Telescope BART in Ondrejov observatory in Czech Republic observed the Swift-detected GRB 060507 (Barbier et al, GCN 5084; Vetere et al, GCN 5085; Vetere et al, GCN 5087; Tueller et al, GCN 5090; Barbier et al, GCN 5091) starting 60.3s after the GRB trigger. We do not detect any new source in the XRT nor BAT errorboxes. Particularly we set the first 60s unfiltered exposure 3-sigma limit calibrated using USNO-A2.0 R-band as R>15.5.