{
  "bibcode": "2013GCN.14883....1K",
  "body": "Klotz A. (IRAP-CNRS-OMP), Gendre B. (IRAP-CNRS-OMP),\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 130612A detected by SWIFT\n(trigger 557976) with the TAROT robotic telescope (D=25cm)\nlocated at the European Southern Observatory,\nLa Silla observatory, Chile.\n\nThe observations started 34.4s after the GRB trigger\n(14.5s after the notice). The elevation of the field increased from\n40 degrees above horizon and weather conditions\nwere excellents.\n\nThe first image is trailed with a duration of 60.0s\n(see the description in Klotz et al., 2006, A&A 451, L39).\nWe detect the OT detected by Racusin et al. (GCNC 14874),\nMelandri et al. (GCNC 14875). Photometry is done using\nNOMAD-1 1067-0303513 (R.A.=259.7905194 Dec=+16.7139250\nR=16.9) as reference star.\n\nAt the start of the trail t0+34.4s R=16.9\nAt the end of the trail   t0+94.4s R=17.5\n\nNext images are acquired in tracking mode.\nThe afterglow is visible more than 30\nminutes after the burst. One of the last\nmeasurement is:\n\n From t0+1466s to t0+2113s  R=19.9\n\nMagnitudes were estimated with the nearby USNO-B1 stars\nand are not corrected for galactic dust extinction.\n\nThis message may be cited.",
  "circularId": 14883,
  "createdOn": 1371027205000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 130612A: TAROT La Silla observatory optical observations",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 130612A"
}