TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3966 SUBJECT: GRB 050911: LCO observations DATE: 05/09/12 04:02:04 GMT FROM: Edo Berger at Carnegie Obs E. Berger (Carnegie Observatories) and A. Boss (Carnegie DTM) report: "We observed the BAT error circle of GRB 050911 (GCN #3961) with the du Pont 100-inch telescope at Las Campanas Observatory on 2005, Sep. 12.125 UT (13 hours after the burst). A total of 16 minutes were obtained in I-band with a seeing of about 0.9". A comparison to DSS reveals no new objects to the limit of the survey."