{
  "bibcode": "2016GCN.20089....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 161022A detected by SWIFT\n(trigger 718655) with the TAROT robotic telescope (D=25cm)\nlocated at the Calern observatory, France.\n\nThe observations started 71s after the GRB trigger\n(17s after the notice). The elevation of the field increased\nfrom 56 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 do not detect any OT with a limiting magnitude of:\nt0+71.2s to t0+131.2s : Rlim = 17.4\n\nThe second image is 30.0s exposure in tracking mode:\nt0+146.3s to t0+176.3s : Rlim = 18.5\n\nWe co-added a series of exposures:\nt0+146.3s to t0+442.9s : Rlim = 19.0\n\nNo more OT detection until t0+6800s at Rlim = 19.0.\n\nMagnitudes were estimated with the nearby USNO-B1 stars\nand are not corrected for galactic dust extinction.",
  "circularId": 20089,
  "createdOn": 1477123275000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 161022A: TAROT Calern observatory optical observations",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 161022A"
}