NOTE: uvot_fluxes_wget.pl vrs. 2023-03-23 fem at 240805d04h55m30s010347usUT NOTE: Source region spec. is: 190.911 -53.622 3" NOTE: Used archived BAT position of 190.91100 -53.62200 NOTE: position reference is GCN_Position_Notice =========== Draft Upper Limit Circular ======== GRB 240805A: Swift/UVOT Upper Limits M. H. Siegel (PSU) and S. Dichiara (PSU) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 240805A 105 s after the BAT trigger (Dichiara et al., GCN Circ. 37032). No optical afterglow consistent with the BAT position *** POSITION REFERENCE is GCN_Position_Notice *** 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 white 105 4086 269 >20.4 v 4297 4497 197 >18.7 b 3681 5128 205 >19.5 u 3476 5113 393 >19.5 w1 4708 4908 197 >19.1 m2 4502 4701 197 >19.1 w2 4092 4292 197 >19.1 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.191 in the direction of the burst (Schlegel et al. 1998).