TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4637 SUBJECT: GRB 060202: Near-IR Observation with UKIRT/WFCAM DATE: 06/02/03 12:30:56 GMT FROM: Yuko Kakazu at U of Hawaii/Inst. for Astro. W-H. Wang (UH/IfA), Y. Kakazu (UH/IfA), B. P. Schmidt (MSO-ANU), and L. L. Cowie (UH/IfA) We have imaged the field GRB060202 (Fox et al., GCN 4629) with the UKIRT Wide Field Camera in J and K-band filters from approximately UT 05:00 to 08:20 on Feb 03. Observations consisted of 10s expsosures in both J and K with a 9-point dither pattern with +/-6.4" and 12.8" offsets. Total integration times for J and K are 60 and 72 minutes, respectively. Images were processed using the UKIRT real-time pipeline ORACDR and we tried to obtain a better background subtraction on the final coadded image. The final image quality is limited by the poor seeing at low elevation and telescope pointing, and has a PSF of 2". We detected a faint source inside the revised 4" XRT error circle (Morris et al., GCN 4632) in K-band images. The location of this source is: RA = 02:23:22.94, DEC = +38:23:03.69 (J2000.0) This is consistent with the Keck/LRIS I-band detection reported by Cenko et al. (GCN 4636) within 1". The magnitude of this source is K = 19.86 with 3" aperture diameter, using nearby 2MASS stars for calibration. A PSF fit, however, suggests the point component may be almost a magnituder fainter and there may be some underlying diffuse emission. In the J band image, we found no source within the XRT error circle to a 1 sigma limiting magnitude of J > 22.74 [2MASS].