NOTE: uvot_fluxes_wget.pl vrs. 2018-01-16 fem at 181003d16h45m54s143937usUT NOTE: Source region spec. is: 52.52871 -33.96467 4" NOTE: Used archived XRT position of 52.52871 -33.96467 4.00 NOTE: position reference is GRB_Auto_Processing WARNING: t_start for light curve (3456) and t_start from the exposure report (3095) do not agree. Replace ??? in draft Circular with correct value. =========== Draft Upper Limit Circular ======== GRB 181003A: Swift/UVOT Upper Limits S. J. LaPorte (PSU) and A. P. Beardmore (U. Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 181003A ***???*** s after the BAT trigger (Beardmore et al., GCN Circ. 23295). No optical afterglow consistent with the XRT position *** POSITION REFERENCE is GRB_Auto_Processing *** 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 initial exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag w1 3661 11338 881 >20.6 m2 3456 10636 1082 >21.0 w2 5454 5601 144 >19.3 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).