TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5249 SUBJECT: GRB 060610: KAIT observations DATE: 06/06/10 08:28:05 GMT FROM: Weidong Li at UC Berkeley KAIT/LOSS W. Li, University of California, Berkeley, on behalf of the KAIT GRB team, report: The robotic 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory observed GRB 060610 detected with Swift (Trigger 214277). A combination of filters is used: V, I, and clear. The first 15 s unfiltered image started at 06:53:38 UT, 37.1s after the burst. Our automatic image processing pipeline identified several new sources relative to the DSS II red image (probably due to the proper motion of the stars in the dense field), but none of them show apparent variable behavior. Furthermore, image subtraction between the images taken between 1 and 45 minutes after the burst show no variable source within the BAT error radius. We set the following limiting magnitudes (calibrated to USNO B1.0 catalog): start UT Exposure Filter Limiting mag 06:53:38 15 s clear 17.7 06:54:37 15 s I 17.5 06:55:03 20 s clear 17.8 06:55:34 45 s V 16.6 06:56:31 45 s I 17.6 06:57:26 45 s clear 18.0 More observations and analysis are in progress.