TITLE: GCN CIRCULAR NUMBER: 13508 SUBJECT: GRB 120722A: Swift/UVOT Upper Limits DATE: 12/07/23 16:33:17 GMT FROM: Tyler Pritchard at PSU T. A. Pritchard (PSU) and A. Melandri (INAF-OAB) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 120722A 157 s after the BAT trigger (Melandri et al., GCN Circ. 13499). No optical afterglow consistent with the Enhanced Swift-XRT position (Evans et al., GCN Circ. 13502)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 157 307 147 >20.9 u_FC 315 565 246 >20.2 white 157 7159 685 >21.7 v 646 11696 1356 >20.5 b 570 18708 758 >21.4 u 315 18411 1583 >21.6 w1 696 16188 820 >21.3 m2 4785 12602 1279 >21.1 w2 1028 6012 216 >20.2 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.05 in the direction of the burst (Schlegel et al. 1998).