GCN Circular 14533
A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), J. Gorosabel (UPV/EHU, IAA-CSIC), N. Tanvir (U. Leicester), J. P. U. Fynbo (DARK/NBI), A. Cabrera-Lavers (IAC-ULL), and C.C. Thoene (IAA-CSIC) report: We observed the afterglow of GRB 130502A (Troja et al. GCN 14527) with the 10.4m GTC telescope starting at 21:01 UT (3.18 hrs after the burst). The observation had a total exposure time of 340 s in z-band. The object reported by Malesani et al. GCN 14531 is detected with an AB magnitude of 22.6+/-0.15 as compared to stars in the SDSS DR9 catalogue.