TITLE: GCN CIRCULAR NUMBER: 28644 SUBJECT: GRB 201014A: Swift/UVOT Upper Limits DATE: 20/10/16 04:29:10 GMT FROM: Sam LaPorte at PSU GRB 201014A: Swift/UVOT Upper Limits J. D. Gropp (PSU) and E. Ambrosi (INAF-IASFPA) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 201014A 176 s after the BAT trigger (Ambrosi et al., GCN Circ. 28623) . No optical afterglow consistent with the XRT position (D'Elia et al., GCN Circ. 28626) 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 b 3291 3483 38 >19.17 uvm2 7457 7657 196 >19.18 u 3035 7877 275 >19.82 v 3365 7452 235 >19.24 uvw1 3414 7862 216 >19.25 uvw2 3514 7248 216 >19.32 white 2876 7042 382 >21.14 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.05 in the direction of the burst (Schlegel et al. 1998). Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>