TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4937 SUBJECT: GRB 060322: LNA optical limit DATE: 06/03/30 18:10:23 GMT FROM: Antonio Pereyra at IAG-U.Sao Paulo A. Pereyra, T. Dominici, A. M. Magalhães and Z. Abraham (IAG, Univ. of São Paulo) report: We observed the field of GRB 060322 (Perri et al. GCN 4903) with the IAG-USP 60cm telescope at the Laboratório Nacional de Astrofísica (LNA), Brazil. The observations were made on March 24.342 (UT middle of observation) and 1.381 days after the burst under non-optimal sky conditions. Comparison to the DSS2 (Red) did not reveal any object inside the error circle from Perri et al. (GCN 4919). Our sequence of co-added R-band images (8x300s + 5x50s) yielded a 3-sigma limit magnitude of 18.7 using USNO B1.0 field stars. This message can be quoted.