{
  "bibcode": "2025GCN.42706....1T",
  "body": "D. Turpin, A. Saccardi, J. T. Palmerio (CEA/Irfu), L. P. Xin, C. Wu (NAOC), B. Cordier (CEA/Irfu), M. Pillas (IAP), M.G. Bernardini (INAF-OAB, LUPM), report on behalf of the SVOM mission team:\n\nWe observed the field of GRB 251116B (Pillas et al., GCN 42702) with the LCO 1m telescope at the South African Astronomical Observatory (SAAO) equipped with the Sinistro instrument.\n\nOur observation started at 2025-11-16T18:42:46, about 3.1 hours after the SVOM/ECLAIRs trigger time. We obtained 3x200 s exposures in the SDSS r and the Pan-STARRS z filters. No uncatalogued source was identified in our stacked frames after subtraction against the Legacy Survey DR10 catalog image.\n\nWe measure the following upper limits (5 sigma) calibrated against the SkyMapper DR4 catalog, and not corrected for Galactic extinction:\n\nr = 22.1  (AB) T_mid - T0 = 3.26 hr\nz = 20.1 (AB) T_mid - T0 = 3.98 hr\n\nThis project is funded by the SVOM collaboration.\n",
  "format": "text/plain",
  "createdOn": 1763326741679,
  "eventId": "GRB 251116B",
  "submittedHow": "web",
  "submitter": "SVOM_group <svomgroup@bao.ac.cn>",
  "subject": "GRB 251116B: LCO optical upper limits",
  "circularId": 42706
}