TITLE: GCN CIRCULAR NUMBER: 15007 SUBJECT: GRB 130716A: UVOT Upper Limits DATE: 13/07/17 02:01:03 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) and S. Immler (GSFC) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 130716A 120s after the BAT trigger (Cummings et al., GCN Circ. 15006). No optical afterglow consistent with the XRT position is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white (fc) 120 270 147 >20.47 white 888 1038 147 >20.90 v 5858 6057 196 >19.17 b 5242 5442 196 >20.01 u (fc) 334 583 245 >19.86 uvw1 4832 5032 196 >19.61 uvm2 4627 4827 196 >19.64 uvw2 5653 5853 196 >20.05 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.01 in the direction of the burst (Schlegel et al. 1998).