TITLE: GCN CIRCULAR NUMBER: 45084 SUBJECT: GRB 260705A: LCO optical upper limits DATE: 26/07/06 08:47:12 GMT FROM: SVOM_group <svomgroup@bao.ac.cn> Y.Y. Shi (GXU), A. Saccardi (CEA/Irfu), C. Wu (NAOC), L.P. Xin (NAOC), D. Turpin (CEA/Irfu), X. Tian (GXU), Z. Liu (GZNU) report on behalf of the SVOM mission team: We observed the field of GRB 260705A (SVOM burst-id sb26070502) detected by SVOM (Saccardi et al., GCN 45079) with the LCO 1m telescope at South African Astronomical Observatory equipped with the Sinistro instrument. Our observation started on 2026-07-06 at 03:52:16 UT (about 14.76 hr after the trigger) and we obtained 3x200 s exposures in the SDSS r and 3x200 s exposures in the Pan-STARRS z filters. In the stacked image, we do not detect any new source within the SVOM/ECLAIRs error box. We measure the following upper limits calibrated against the DESI Legacy Imaging Surveys DR10 catalog, and not corrected for Galactic extinction: r > 20.9 AB (5-sigma, mid-time 14.85 h after the trigger); z > 19.9 AB (5-sigma, mid-time 15.06 h after the trigger). This project is funded by the SVOM collaboration. View this GCN Circular online at https://gcn.nasa.gov/circulars/45084. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...