NOTE: uvot_fluxes_wget.pl vrs. 2016-02-01 fem at 160914d02h48m07s861666usUT NOTE: Used archived opt source position of 221.44183 39.06672 3.00 NOTE: position reference is GCN_Circ-19908 NOTE: Possible detection in wh at T+196954.6 =========== Draft Upper Limit Circular ======== GRB 160910A: Swift/UVOT Upper Limits L. M. Z. Hagen (PSU) and J. R. Cummings (***BA INSTITUTION***) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 160910A 196955 s after the LAT trigger (***Author*** et al., GCN Circ. ????). No optical afterglow consistent with the optical position *** POSITION REFERENCE is GCN_Circ-19908 *** 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 196955 277128 2781 >20.6 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). =========== Draft Detection Circular ======== GRB 160910A: Swift/UVOT Detection L. M. Z. Hagen (PSU) and J. R. Cummings (***BA INSTITUTION***) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 160910A 196955 s after the LAT trigger (***Author*** et al., GCN Circ. ????). A source consistent with the optical position *** POSITION REFERENCE is GCN_Circ-19908 *** is detected in the initial UVOT exposures. Preliminary detections using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white 225033 225588 546 20.80 +/- 0.18 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).