{
  "createdOn": 1371013863000,
  "editedOn": 1731008300108,
  "eventId": "GRB 130612A",
  "body": "Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC),\nWilliam H. Lee (UNAM), Michael G. Richer (UNAM), Chris Klein (UCB), Ori\nFox (UCB) J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino\nCucchiara (UCSC), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico\nRamirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM),\nJesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC),\nand Harvey Moseley (GSFC) report:\n\nWe observed the field of GRB 130612A (Racusin, et al., GCN Circular\n14874) with the Reionization and Transients Infrared Camera (RATIR;\nwww.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio\nAstronómico Nacional on Sierra San Pedro Mártir from 2013/06 12.16 to\n2013/06 12.20 UTC (0.40 to 1.31 hours after the BAT trigger), obtaining\na total of 0.71 hours exposure in the r' and i' bands.\n\nFor a source within the Swift-XRT error circle, in comparison with\nUSNO-B1 and 2MASS, we obtain the following detections:\n\nr' 21.23 ± 0.07\ni' 21.05 ± 0.06\n\nThese magnitudes are in the AB system and not corrected for Galactic\nextinction in the direction of the GRB.\n\nThe position of the source is consistent with the UVOT afterglow\nposition Racusin, et al., GCN Circular 14874). The afterglow appears to\nhave faded considerably since the earlier observations reported by\nMelandri et al. (GCN Circular 14875), and Jakobsson et al. (GCN Circular\n14878).\n\nWe thank the staff of the Observatorio Astronómico Nacional in San Pedro\nMártir.",
  "subject": "GRB 130612A: RATIR Optical Observations",
  "circularId": 14880,
  "email": "alan@astro.unam.mx",
  "editedBy": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "format": "text/plain",
  "submitter": "Alan M. Watson at Instituto de Astronomia UNAM  <alan@astro.unam.mx>",
  "bibcode": "2013GCN.14880....1B",
  "version": 2
}