{
  "bibcode": "2013GCN.15602....1K",
  "body": "Klotz A., Turpin D. (IRAP-CNRS-OMP), Gendre B.,\nBoer M., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA),\nAtteia J.L. (IRAP-CNRS-OMP) report:\n\nWe imaged the field of GRB 131218A detected by INTEGRAL\n(trigger 6409) with the TAROT robotic telescope (D=25cm)\nlocated at the European Southern Observatory,\nLa Silla observatory, Chile.\n\nThe observations started 3.41h after the GRB trigger\nwhich occured during day. The elevation of the field\nincreased from 26 degrees above horizon and weather\nconditions were good.\n\nWe co-added a series of exposures but we do not\ndetect any OT with a limiting magnitude of:\n\nt0+3.41h to t0+4.98h : Rlim = 19.6\n\nMagnitudes were estimated with the nearby NOMAD1 stars\nand are not corrected for galactic dust extinction.\n\nN.B. Galactic coordinates are lon=276.4490 lat=-19.8751\nand the galactic extinction in R band is about 0.4 magnitudes\nestimated from D. Schlegel et al. 1998ApJ...500..525S.\n\nThis message may be cited.",
  "circularId": 15602,
  "createdOn": 1387488094000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 131218A: TAROT La Silla observatory optical observations",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 131218A"
}