TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4153 SUBJECT: GRB051022: IR observations DATE: 05/10/23 23:13:38 GMT FROM: Josh Bloom at UC Berkeley J. S. Bloom (UCB) reports: "We observed the field of GRB051022 (GCN 4131; GCN 4137) with the PAIRITEL 1.3m starting at 2005-10-23 04:00:34 UTC. In a total exposure of 1836 seconds we detect in JHKs the three sources (A,B: Castro-Tirado et al. GCN 4143; C: Cool GCN 4149) near the XRT position (GCN 4141). We note that only source B is consistent with the current XRT position. An image has been posted to: http://astro.berkeley.edu/~jbloom/grb051022_ir.gif (the XRT position marked as a white circle) Further observations are planned." This message may be cited.