TITLE: GCN CIRCULAR NUMBER: 12090 SUBJECT: Swift J185003.2-005627: NIR Observation DATE: 11/06/26 01:09:55 GMT FROM: Myungshin Im at Seoul Nat U Myungshin Im, Ji Hoon Kim, and Changsu Choi (CEOU/Seoul National University) on behalf of a larger collaboration We observed Swift J185003.2-005627 (Beardmore et al. GCN 12083) in K-band with UKIRT starting at 2011 June 25, 08:50:09 UT. Within the enhanced XRT/UVOT error circle (Beardmore et al. GCN 12087), we identify a NIR source with K ~ 14.8 mag, at the position of RA=18:50:03.27 and Dec=-00:56:23.2. However, no strong variability is detected over the time span of 3 hours. The source density is very high in this field too. Judging from these facts, it is very unclear if this source is associated with the transient. Further observation is planned.