GCN Circular 24834
N.P.M. Kuin (UCL/MSSL) and P.A. Evans (Leicester U) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 190610A 292282 s after the BAT trigger (Evans et al., GCN Circ. 24775). No optical afterglow consistent with the BAT position or the XRT candidate position (Beardmore et al., GCN Circ. No. 24833) has been 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 initial exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag v 292282 300459 4890 >20.3 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.09 in the direction of the burst (Schlegel et al. 1998).