TITLE: GCN CIRCULAR NUMBER: 6412 SUBJECT: GRB 070517: Optical search DATE: 07/05/17 14:55:18 GMT FROM: Alan Gilmore at U of Canterbury,Mt John Obs A. C. Gilmore (Mt John Observatory of the University of Canterbury) reports: A total of 1200 seconds clear CCD exposures of the GRB 070517 region were taken with the 1-m f/7.7 reflector at Mt John Observatory in poor (3.5") seeing . The exposure set was centred on May 17 14:01 UT, 2.7 hours after the burst. No new object was seen to the limit of DSS-2 infrared in a 5' x 5' region approximately centred on the revised position of Vergani et al at (J2000) RA 18h 30m 30s Dec -62d 17' 50".