TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1685 SUBJECT: GRB 021112: Optical Observations DATE: 02/11/13 00:16:11 GMT FROM: Melissa Nysewander at UNC,Chapel Hill J. Schaefer, S. Savage, R. Canterna (U. Wyoming), M. Nysewander, and D. Reichart (U. North Carolina) report: We observed the inner 90% of the 40-arcminute diameter error circle of GRB 021112 (GCN 1682) with the 0.6-meter Red Buttes Observatory telescope beginning 1.8 hours after the burst. We integrated without filter for 1800 seconds per pointing x four pointings. Visual comparison with the DSS2-Red reveals no obvious counterpart to the limiting magnitude of the DSS. [GCN OPS NOTE (13nov02): The Circ 1683 reference was changed to 1682.]