NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190625d01h41m32s647616usUT NOTE: Source region spec. is: 144.524 +46.476 3" NOTE: Used archived BAT position of 144.52400 46.47600 NOTE: position reference is GCN_Position_Notice =========== Draft Upper Limit Circular ======== GRB 190624: Swift/UVOT Upper Limits A. A. Breeveld (UCL-MSSL) and ***BA*** (***BA INSTITUTION***) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 190624 3358 s after the BAT trigger (***Author*** et al., GCN Circ. ????). 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 first finding chart (FC) exposure and subsequent exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 3358 3508 147 >19.8 white 3358 3508 147 >19.8 v 3515 3715 197 >18.5 u 4130 4237 105 >19.1 w1 3925 4125 197 >19.2 m2 3720 3920 197 >19.6 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).