{
  "eventId": "GRB 231205B",
  "subject": "GRB 231205B: Zadko observatory - Gingin optical observations",
  "circularId": 35282,
  "submitter": "Bruce Gendre at UVI <bruce.gendre@gmail.com>",
  "body": "B. Gendre, E. Moore, E. Van Dongen, F. Panther,\nD. Coward, J. A. Moore (OzGrav-UWA), A. Klotz (IRAP-CNRS-OMP),\nand P. Thierry (AGORA),\nreport:\n\nWe imaged the field of GRB 231205B detected by SWIFT\n(Evans et al., GCN 35269, trigger 1200812) with the\nZadko robotic telescope (D=100cm) located at Gingin, Australia.\n\nThe observations started 201.6s after the GRB trigger (126.1s\nafter the notice). The elevation of the field decreased from\n25 degrees above horizon and weather conditions were poor,\nwith high altitude clouds.\n\nThe date of trigger : t0 = 2023-12-05T16:43:59.500\n\nThe first image is a 10.0s exposure in tracking mode. At the\nposition of the XRT afterglow (Osborne et al, GCN 35275), we\ndo not detect any OT with a limiting magnitude of:\nt0+201.6s to t0+211.6s : R > 16.2\n\nWe co-added a series of exposures:\nt0+217.3s to t0+344.2s : R > 17.2\n\nMagnitudes were estimated with the nearby USNO-B1 stars\nand are not corrected for galactic dust extinction.\n\nN.B. Galactic coordinates are lon=162.4895 lat=-22.7655\nand the galactic extinction in R band is 0.3 magnitudes\nestimated from D. Schlegel et al. 1998ApJ...500..525S.\n\nThis message may be cited.\n",
  "submittedHow": "email-legacy",
  "createdOn": 1701848299740,
  "bibcode": "2023GCN.35282....1G"
}