TITLE: GCN CIRCULAR NUMBER: 7743 SUBJECT: GRB080517: Liverpool Telescope Optical Observations DATE: 08/05/17 23:09:10 GMT FROM: James Smith at ARI,Liverpool John Moors U R.J. Smith (Liverpool JMU), A. Gomboc (Univ. of Ljubljana, Slovenia), A. Melandri, C. Guidorzi, M. Burgdorf, C.G. Mundell, I.A. Steele, D. Carter, A. Monfardini, C.J. Mottram, S. Kobayashi, D. Bersier (Liverpool JMU) report: The 2-m Liverpool Telescope started observing the field of GRB 080517 (Parsons et al. GCN 7742) at 3 min after the trigger time. No optical transient has been located in our images to the following magnitude limits: Filter t_mid (min from GRB) Exp (s) Lim ------------------------------------------------------------------ R 16.08 120 19.6 I 18.93 120 19.2 ------------------------------------------------------------------ Magnitudes were calibrated vs the USNOB1 catalogue. In particular, comparison with Digitized Sky Survey images shows no obvious additional optical source in the vicinity of the known, moderately bright object noted to be within the XRT error circle. Observations stopped one hour after the burst time. No further observations are currently planned.