{
  "subject": "GRB 261110A: LCO optical upper limits",
  "submitter": "SVOM_group <svomgroup@bao.ac.cn>",
  "body": "Y.Y. Shi (GXU), A. Saccardi, D. Turpin (CEA/Irfu), C. Wu, L.P. Xin (NAOC), S.J. Yin, Y.X. Guan (GXU),  W.Jun. Tan (PKU), J.X. Cao (GXU) report on behalf of the SVOM mission team:\n\n\nWe observed the field of GRB 261110A (SVOM burst-id sb26111002) detected by SVOM (Wang et al., GCN 46215) with the LCO 1m telescope at Cerro Tololo Inter-American Observatory equipped with the Sinistro instrument.\n\nOur observation started on 2026-11-11T00:46:09 UTC (about 12.94 hr after the trigger) and we obtained 3x200 s exposures in the SDSS r and Pan-STARRS z filter.\n\nWe do not detect the optical counterpart (Wu et al., GCN 46218; Li et al., GCN 46219; Moskvitin et al., GCN 46220) in our stacked image. We measure the following upper limits calibrated against the Pan-STARRS DR1 catalog, and not corrected for Galactic extinction:\n\nr > 22.3 AB (3-sigma, mid-time 13.03 hr after the trigger),\nz > 20.2 AB (3-sigma, mid-time 13.07 hr after the trigger).\n\nThis project is funded by the SVOM collaboration.",
  "createdOn": 1794365859027,
  "submittedHow": "web",
  "eventId": "GRB 261110A",
  "circularId": 46221,
  "eventType": [
    "GRB",
    "Optical Transient"
  ],
  "format": "text/plain"
}