{
  "bibcode": "2013GCN.14877....1T",
  "body": "A. Trotter, J. Haislip, D. Reichart, A. LaCluyze, T. Berger, M. \nCarroll, H. T. Cromartie, R. Egger, A. Foster, C. Foster, N. Frank, K. \nIvarsen, D. James, M. Maples, J. Moore, M. Nysewander, E. Speckhard, P. \nTaylor and J. A. Crain report\n\nSkynet observed the Swift XRT localization of the field of GRB 130612A \n(Racusin et al., GCN 14874, Swift trigger #557976), beginning at \n2013-06-12, 3:23:27 UT (t=70s post-trigger) using three 16\" telescopes \nof the PROMPT array at Cerro Tololo, Chile.  We detect a fading \nafterglow in the B, V and I bands at a position (J2000.0)\nRA: 17:19:10.6\nDec: 16:43:11.6,\nconsistent with the detections of Racusin et al. (GCN 14874), Melandri, \nMundell & Gomboc (GCN 14875), and Morgan (GCN 14876).\n\nA preliminary light curve is at:\nhttp://www.skynet.unc.edu/grb/grb130612a.png\n\nPreliminary photometry is calibrated to 5 NOMAD/USNO B1.0 stars in the \nfield, and magnitudes are in the Vega system.\n\nSkynet observations are ongoing.\n\n[GCN OPS NOTE(12jun13): Per author's request, the typo in JH's name was corrected.]",
  "circularId": 14877,
  "createdOn": 1371011769000,
  "email": "atrotter@physics.unc.edu",
  "subject": "GRB 130612A: Skynet/PROMPT detection of the optical afterglow",
  "submitter": "Adam S. Trotter at UNC-Chapel Hill/PROMPT/Skynet  <atrotter@physics.unc.edu>",
  "eventId": "GRB 130612A"
}