{
  "bibcode": "2016GCN.19742....1K",
  "body": "Klotz A., Turpin D., Atteia J.L. (CNRS-OMP-IRAP),\nBoer, M., Laugier, R. (CNRS-ARTEMIS),\nGendre B. (UVI - Etelman Obs.) report:\n\nWe imaged the field of GRB 160716A detected by SWIFT\n(trigger 704572) with the TAROT robotic telescope (D=25cm)\nlocated at the European Southern Observatory,\nLa Silla observatory, Chile.\n\nThe observations started 43.6s after the GRB trigger\n(15.6s after the notice). The elevation of the field decreased from\n44 degrees above horizon and weather conditions\nwere good.\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).\nIn the error box of XRT provided by Evans et al. (GCNC 19717)\nwe do not detect any OT with a limiting magnitude of:\nt0+43.6s to t0+103.6s : Rlim = 16.7\n\nThe second image is 30.0s exposure in tracking mode:\nt0+117.4s to t0+147.4s : Rlim = 17.5\n\nWe co-added a series of exposures:\nt0+117.4s to t0+412.5s : Rlim = 18.2\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=301.8222 lat= +1.4859\nand the galactic extinction in R band is about magnitudes.",
  "circularId": 19742,
  "createdOn": 1469829527000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 160716A: TAROT La Silla observatory optical observations",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 160716A"
}