{
  "bibcode": "2017GCN.21117....1C",
  "body": "A. J. Castro-Tirado (IAA-CSIC & ISA-UMA), J. C. Tello, R. Cunniffe, \nB.-B. Zhang, Y. Hu and A. Gonzalez-Rodriguez (IAA-CSIC), A. Castellon \n(Univ. de Malaga), D. Hiriart, W. H. Lee (UNAM), S. Jeong and I. H. Park (SKKU)\nand P. Kubanek (Inst. of Physics, CZ) on behalf of a larger collaboration, report:\n\nThe 60 cm BOOTES-5/Javier Gorosabel Telescope at Observatorio \nAstron��mico Nacional in San Pedro M��rtir (M��xico) automatically \nresponded to the Swift trigger of GRB 170519A (Ukwatta et al., GCN \n21106). The first unfiltered images (60 s exposures) were obtained at \n05:15:08.9 UT (5 min after the burst). At the position of the Swift \nX-ray afterglow, we confirm the optical afterglow detected by UVOT, at a \nmagnitude of 16.6+/-0.1 when compared to the GSC2.3 catalog, and fading \nduring the late-time BOOTES-5/JGT observation.\n\nWe thank the staff at Observatorio Astron��mico Nacional in San Pedro \nM��rtir for its excellent support.\n\n[GCN OPS NOTE(19may17),  At the request of the author, the last 3 authors\nwere added.]",
  "circularId": 21117,
  "createdOn": 1495234711000,
  "email": "ajct@iaa.es",
  "subject": "GRB 170519A: BOOTES-5/JGT early optical detection",
  "submitter": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>",
  "eventId": "GRB 170519A"
}