TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5171 SUBJECT: GRB060526, optical observations DATE: 06/05/27 04:09:52 GMT FROM: Adalberto Piccioni at Astronomy, Bologna U. G. Greco (Bologna University), F. Terra, (Second University of Roma "Tor Vergata"), C. Bartolini, A. Guarnieri and A. Piccioni (Bologna University), D. Nanni (INAF/OAR and Second University of Roma "Tor Vergata"), I. Bruni and S. Galleti (Bologna Observatory), and G. Pizzichini (INAF/IASF Bologna) report: We have imagined the field of GRB 060526 by means of the 152 cm telescope of Loiano equipped with Bfosc obtaining 6 frames in Rc, 3 in V and 3 in I. Preliminary photometry, using USNO B1 (R1) stars, on May 27.0024 (UT mean time) yields Rc = 19.34 +- 0.10. The Rc image has been posted in our public directory from where it can be retrieved by sftp using: hostname: ermione.bo.astro.it username: publicGRB password: GRB_bo.