TITLE: GCN CIRCULAR NUMBER: 5934 SUBJECT: GRB061217: Swift/UVOT refined analysis. DATE: 06/12/17 22:02:34 GMT FROM: Massimiliano de Pasquale at MSSL-UCL M. De Pasquale, H. Ziaeepour, M. Chester, M.J. Page report on the behalf of the Swift UVOT team: The Swift/UVOT began observing the field of the short GRB GRB061217 4917 seconds after the BAT trigger (Barthelmy et al., GCN Circ. 5926). No optical afterglow candidate is detected in the XRT error circle of source S1, the likely X-ray afterglow reported by Evans et al. GCN circ. 5932, in the first V and White exposures or in the coadded ones. We quote 3-sigma magnitude upper limits. Filter T_start T_end Exposure 3s u.l. (s) (s) (s) ========================================== White 4917 5017 100 19.2 V 5024 5223 200 19.2 White 4917 11602 1343 20.6 V 5024 17392 1278 20.3 B 5842 7474 393 20.2 U 5637 7269 342 19.8 UVW1 5433 7065 393 19.7 UVM2 5228 17725 717 20.4 UVW2 5464 13325 997 20.6 ========================================== We note that source S1 lies about 10'' from the bright - V~17.6 - galaxy which is also visible in the Supercosmos scans of the UKST sky survey plates. The magnitudes quoted above are not corrected for the expected small Galactic extinction of E_{B-V} = 0.045 mag (Schlegel et al. 1998). [GCN OPS NOTE(17dec06): Per author's request, the HZ author's name was corrected.]