{
  "version": 2,
  "editedOn": 1731005999535,
  "bibcode": "2013GCN.14459....1B",
  "subject": "GRB 130427A: RATIR Optical and NIR Observations",
  "email": "natbutler@asu.edu",
  "format": "text/plain",
  "body": "Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William\nH. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori Fox (UCB)\nJ. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UCSC),\nEleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC),\nJosé A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM),\nCarlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC)\nreport:\n\nWe observed the field of GRB 130427A (Maselli, et al., GCN 14448) with the\nReionization and Transients Infrared Camera (RATIR; www.ratir.org) on the\n1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional on\nSierra San Pedro Mártir from 2013/04 27.34 to 2013/04 27.39 UTC (0.25 to\n1.67 hours after the BAT trigger), obtaining a total of 1.07 hours exposure\nin the r' and i' bands and 0.45 hours exposure in the Z, Y, J, and H bands.\n\nFor a source at afterglow location reported by Elenin et al. (GCN 14450),\nin comparison with SDSS DR8 and 2MASS, we obtain the following detections:\n\n  i' 14.46 +/- 0.01\n  Z  14.13 +/- 0.03\n  Y  14.02 +/- 0.03\n  J  14.05 +/- 0.02\n  H  13.77 +/- 0.03\n\nThese magnitudes are not corrected for Galactic extinction in the direction\nof the GRB.\n\nWe thank the staff of the Observatorio Astronómico Nacional in San Pedro\nMártir.",
  "circularId": 14459,
  "createdOn": 1367069444000,
  "submitter": "Nat Butler at Az State U  <natbutler@asu.edu>",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "eventId": "GRB 130427A"
}