TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4926 SUBJECT: GRB060323: optical limit DATE: 06/03/27 12:02:53 GMT FROM: Alexei Pozanenko at IKI, Moscow G. Kornienko (UAPhO), A.Pozanenko (IKI), V.Rumyantsev (CrAO), on behalf of larger GRB follow up collaboration report: We have observed the error box of the Swift GRB060323 (Vetere et al., GCN 4904) with 0.4m telescope of Ussuriysk Astrophysical Observatory (UAPhO) in R-band between Mar. 23 (UT) 15:00 - 15:51. We do not detect the optical afterglow (Covino et al., GCNs 4911, 4916), and upper limits of combined images calibrated against of USNO-A2.0 (R) are following: Mid time, Exposure, Limiting mag. (UT) (s) Mar.23.629 5x60 ~16.0 Mar.23.642 20x60 ~17.0