TITLE: GCN CIRCULAR NUMBER: 14783 SUBJECT: GRB 130606A: NOT afterglow detection DATE: 13/06/06 22:29:03 GMT FROM: Dong Xu at DARK/NBI D. Xu (DARK/NBI), D. Malesani (DARK/NBI), S. Schulze (PUC and MCSS), N. R Tanvir (U. Leicester), D. J. Watson (DARK/NBI), J. Hjorth (DARK/NBI), J. Datson (Tuorla Observatory, U. Turku), R. Salinas (FINCA) report on behalf of a larger collaboration: We observed the field of GRB 130606A (Ukwatta et al., GCN 14781) using the 2.5m Nordic Optical Telescope (NOT) equipped with the MOSCA imager. Observations started at 21:35 UT on 2013-06-06 (i.e., 0.5 hr after the burst) and 2x300 s frames were obtained in the Sloan r-filter. Close to the refined XRT position, we detect an object not visible in the DSS and SDSS images of the field, at the following coordinates: RA (J2000) = 16:37:35.188 Dec(J2000) = +29:47:47.03 These coordinates are formally outside the XRT error circle, which is however affected by extra systematic uncertainties due to the problems in the satellite attitude (Ukwatta et al., GCN 14781). The object has m(r) = 20.8, calibrated against the SDSS. We suggest this object is the afterglow of GRB 130606A. It is probably the same object reported by Jelinek et al. (GCN 14782).