GCN Circular 14761
S. B. Cenko (GSFC) and D. A. Perley (Caltech) report on behalf of a larger collaboration: We have imaged the field of the short-hard GRB 130603B (Melandri et al., GCN 14735) with the robotic Palomar 60 inch telescope. Images were obtained in the r' and i' filters beginning at 04:00 on 2013 June 4 (~ 12.2 hr after the Swift trigger). At the location of the optical afterglow (Levan et al., GCN 14742), we detect a source mildly blended with the presumed host galaxy. Using a large aperture to include both objects, we measure a magnitude of r' = 20.8 at this time (calibrated with respect to several nearby point sources from SDSS).