TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4369 SUBJECT: GRB 051221: Gemini observations DATE: 05/12/21 07:21:11 GMT FROM: Edo Berger at Carnegie Obs E. Berger (Carnegie Observatories) reports: "We observed the BAT error circle of the short GRB 051221 (GCN 4365) with GMOS on the Gemnini-north telescope starting on 2005 Dec. 21.194 UT (2.8 hours after the burst). A total of 40 min were obtained in the r-band under excellent seeing conditions (0.45"). Within the XRT error circle (GCN 4366) we detect a single source at a position coincident with the source reported in GCN 4367: RA = 21:54:48.64 DEC= +16:53:27.44 Further analysis is in progress."