TITLE: GCN CIRCULAR NUMBER: 12820 SUBJECT: GRB 120106A: Bassano Bresciano Observatory optical observations DATE: 12/01/07 16:22:20 GMT FROM: Ulisse Quadri at Bassano Bresciano Obs U.Quadri, L.Strabla and R.Girelli report:We imaged the field of GRB 120106A detected by SWIFT(trigger 511235) with the robotic telescopeof (565)Bassano Bresciano Observatory, Italy.The observations started 223 min. after the GRB trigger,with our schmidt telescope (320/400/1000).Weather conditions were excellents.We co-added a series of 15 exposures. We did not foundany optical counterpart in the error box of the XRTcandidate.Start    End       Vlim223 min  252 min   19.5Magnitudes were estimated with the UCAC-3 catalog.