{
  "createdOn": 1793253433182,
  "editedOn": 1793282765687,
  "subject": "GRB 261029A: LCO optical observations",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of SVOM_group <svomgroup@bao.ac.cn>",
  "eventId": "GRB 261029A",
  "format": "text/plain",
  "body": "S.J. Yin(GXU), C. Wu (NAOC), A. Saccardi (CEA/Irfu), L.P. Xin X.H. Han (NAOC),Hatsune Goto (RIKEN/CEA), Hanrui He (PMO), Clara Plasse (HKU), W.J. Xie (NAOC), Y.F. Liang (PMO), Z.Y. Liu (GZNU), Y.Y. Shi, Y.X. Guan(GXU) report on behalf of the SVOM mission team:\n \nWe observed the field of the SVOM/ECLAIRs GRB 261029A (Goto et al., GCN 46072) with the LCO 1m telescope at Cerro Tololo Observatory equipped with the Sinistro instrument.\n \nOur observation started on 2026-10-29 at 03:34:23.407 UT and we obtained 3x200 s exposures in the SDSS r and 2x200 s exposures in the Pan-STARRS z filters.\n \nThe optical counterpart (O'Neill et al. GCN 46073, He et al. GCN 46078, Wang et al. GCN 46079, De et al. GCN 46080, Cotter et al. GCN 46081) is detected in our images. We measure the following magnitudes calibrated against the Pan-STARRS DR1 catalog, and not corrected for Galactic extinction:\n \nr = 17.25 +/- 0.02 AB (mid-time 2.17 hr after the trigger);\nz = 17.34 +/- 0.04 AB (mid-time 2.83 hr after the trigger).\n \nThis project is funded by the SVOM collaboration.",
  "submitter": "SVOM_group <svomgroup@bao.ac.cn>",
  "circularId": 46082,
  "submittedHow": "web",
  "version": 2,
  "eventType": [
    "GRB",
    "Optical Transient"
  ]
}