TITLE: GCN CIRCULAR NUMBER: 5962 SUBJECT: GRB 061222b: Refined redshift DATE: 06/12/22 05:33:56 GMT FROM: Edo Berger at Carnegie Obs E. Berger (Carnegie) reports: "Using several metal absorption features (e.g., SiII, CII, SiIV, etc.) in our first 1800 sec spectroscopic observation we determine a refined redshift for GRB 061222b of z=3.355."