TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3639 SUBJECT: GRB 050717: LCO near-IR observations DATE: 05/07/18 05:25:21 GMT FROM: Edo Berger at Carnegie Obs E. Berger and M. Lopez-Morales (Carnegie) report on behalf of a larger collaboration: "We observed the XRT error circle (GCN 3636) of GRB 050717 (GCN 3633) with the Wide-Field Infrared Camera on the du Pont 100-inch telescope at Las Campanas Observatory on 2005 July 19.01 UT (37.7 hours after the burst) in K-band. A total of 810 seconds were obtained in good seeing conditions. Within the 6-arcsec radius XRT error circle we find 4 sources of which one is also visible in 2MASS K-band images. The other three sources have magnitudes of 18.1, 18.7, and 19.2 in comparison to several 2MASS stars; the 3-sigma limiting magnitude of our image is about 19.4. At this point we do not have any evidence for fading in any of the three sources. Further observations are planned."