{
  "bibcode": "2013GCN.14147....1B",
  "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), Enrico Ramirez‐Ruiz (UCSC), José A. de\nDiego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM),\nCarlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and Harvey\nMoseley (GSFC) report:\n\nThrough intermittent clouds and in poor seeing conditions, we observed the\nfield of GRB 130122A (Lien, et al., GCN 14140) with the Reionization and\nTransients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold\nJohnson Telescope at the Observatorio Astronómico Nacional on Sierra\nSan Pedro Mártir.  Between 2013 Jan 23.30 to 2013 Jan 23.52 UTC (7.6\nto 12.7 hours after the BAT trigger), we obtained approximately 45 minutes\nof useful data in the r', i', Z, Y, and J bands.\n\nIn comparison with SDSS DR8 and 2MASS, we derive the following detection\nand upper limits (3-sigma) in the AB magnitude system for a source\nspatially coincident with the UVOT position (GCN 14140):\n\n r' >20.7\n i' 21.1 +/- 0.2\n Z  >20.3\n Y  >20.2\n J  >18.2\n\nThese magnitudes are not corrected for Galactic extinction in the direction\nof the GRB.  Continued observations are planned.\n\nWe thank the staff of the Observatorio Astronómico Nacional in San\nPedro Mártir.",
  "circularId": 14147,
  "createdOn": 1359003513000,
  "email": "natbutler@asu.edu",
  "subject": "GRB 130122A: RATIR Detection",
  "submitter": "Nat Butler at Az State U  <natbutler@asu.edu>",
  "eventId": "GRB 130122A"
}