{
  "bibcode": "2012GCN.13306....1G",
  "body": "Gendre B. (ASDC/INAF-OAR), Klotz A. (IRAP-CNRS-OMP),\nBoer M. (UNS-CNRS-OCA), Atteia J.L. (IRAP-CNRS-OMP) report:\n\nWe imaged the field of GRB 120521B detected by SWIFT\n(trigger 522586) with the TAROT robotic telescope (D=25cm)\nlocated at the European Southern Observatory,\nLa Silla observatory, Chile.\n\nThe observations started 88.8s after the GRB trigger\n(25.6s after the notice). The elevation of the field decreased from\n12 degrees above horizon and weather conditions\nwere poor.\n\nIn a clean exposure, taken between T0 + 473.1s and T0 + 563.1s,\nwe do not detect any afterglow with a limiting magnitude of R > 17.2.\n\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=305.4846 lat=+10.0434\nand the galactic extinction in R band is 1.2 magnitudes\nestimated from D. Schlegel et al. 1998ApJ...500..525S.\n\nThis message may be cited.\n\n----------------------------------------------------------------\nThis message was sent using IMP, the Internet Messaging Program.",
  "circularId": 13306,
  "createdOn": 1337594412000,
  "email": "bruce.gendre@asdc.asi.it",
  "subject": "GRB 120521B: TAROT La Silla observatory optical observations",
  "submitter": "Bruce Gendre at ASDC  <bruce.gendre@asdc.asi.it>",
  "eventId": "GRB 120521B"
}