TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4540 SUBJECT: GRB 060116: UKIRT IR Observations DATE: 06/01/18 04:20:13 GMT FROM: Daniel Kocevski at UC Berkeley D. Kocevski, J. S. Bloom (UC Berkeley), and E. J. McGrath (UH Institute for Astronomy) report on behalf of a larger collaboration: "Repeat imaging of the field of GRB060116 with the United Kingdom Infra-Red Telescope (UKIRT) at Mauna Kea begining at 07:28:37.44 UTC on Jan 17th shows that the IR source reported by Kocevski et. al. (GCN 4528) is no longer detected in our images. These observations are consistent with the results reported by Malesani et. al. (GCN 4532) and confirms the variability of the source in the J band. An image of the source and it's subtraction from the Jan 17th data can be found at: http://spacibm.rice.edu/~kocevski/sub.jpg" Daniel Kocevski kocevski@berkeley.edu www.kocevski.com Astrophysics, UC Berkeley 832.423.5881