{
  "bibcode": "2013GCN.14468....1G",
  "body": "B. Gendre, A. Klotz (IRAP-CNRS-OMP), D. Macpherson (UWA/ICRAR),\nD. Coward (UWA), M. Boer, K. Siellez, H. Dereli ,\nO. Bardho (UNS-CNRS-ARTEMIS-OCA), A. Williams (PO-UWA),\nR. Martin (PO-UWA) report:\n\nWe imaged the field of GRB 130427A detected by SWIFT\n(trigger 554620) with the Zadko robotic telescope (D=100cm)\nlocated at the observatory - Gingin, Australia.\n\nThe observations started 3.44h after the GRB trigger\n(the event occured during the local afternoon).\nThe elevation of the field increased from\n23 degrees above horizon and weather conditions\nwere good.\n\nWe detect the optical couterpart discovered by\nElenin et al. (GCNC 14450). The unfiltered images\nare analyzed regarding the R magnitude of star\ncatalogues. The preliminary light curve is:\n\nTstart Tstop Rmag  1sig\n(mins) (mins)\n    207   219 15.50 0.1\n    220   232 15.54 0.1\n    238   250 15.37 0.1\n    252   264 15.56 0.1\n    265   277 15.51 0.1\n    304   319 15.58 0.1\n    447   450 16.27 0.2\n\nMagnitudes are not corrected for galactic dust extinction.\n\nThis message may be cited.",
  "circularId": 14468,
  "createdOn": 1367084628000,
  "email": "Alain.Klotz@free.fr",
  "subject": "GRB 130427A: Zadko observatory - Gingin optical observations",
  "submitter": "Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz@free.fr>",
  "eventId": "GRB 130427A"
}