TITLE: GCN CIRCULAR NUMBER: 5739 SUBJECT: GRB061019: optical observations DATE: 06/10/20 17:22:28 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Klunko (ISTP), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report: We observed the error-box error box of GRB061019 (Guidorzi et al., GCN 5728) with 1.5m telescope of Sayan Observatory (Mondy) in R-bands on Oct.19 between (UT) 18:11 and 19:00. In a combined image (30 x 100 s) within refined XRT error circle (Guidorzi et al., GCN 5733) we do not found any object down to limiting magnitude R~19.0 (3 sigma). The limiting magnitude is based on USNO A2.0 catalog. This message may be cited.