TITLE: GCN CIRCULAR NUMBER: 12396 SUBJECT: GRB 110928A: PAIRITEL NIR Observations DATE: 11/09/28 02:37:03 GMT FROM: Adam Morgan at U.C. Berkeley C. R. Klein and A. N. Morgan (U. C. Berkeley) report: We observed the field of GRBs 110928A (Hoverston et al., GCN 12394) with the 1.3m PAIRITEL located at Mt. Hopkins, AZ. Observations began at 2011-Sep-28 02h03m59s, 12.5 minutes after the GRB. In mosaics (effective exposure time of 468s) taken simultaneously in the J, H, and Ks filters, we do not clearly detect any new sources in the BAT error circle down to the limit of the 2mass catalog.