{
  "bibcode": "2014GCN.16963....1L",
  "body": "Owen Littlejohns (ASU), Nat Butler (ASU), Alan M. Watson (UNAM),\nAlexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer\n(UNAM), Chris Klein (UCB), Ori Fox (UCB), J. Xavier Prochaska\n(UCSC), Josh Bloom (UCB), Antonino Cucchiara (ORAU/GSFC), Eleonora\nTroja (GSFC), Enrico Ramirez-Ruiz (UCSC), Jos�� A. de Diego (UNAM),\nLeonid Georgiev (UNAM), Jes��s Gonz��lez (UNAM), Carlos Rom��n-Z����iga\n(UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC) report:\n\nWe again observed the field of GRB 141004A (D'Elia, et al., GCN 16878)\nwith the Reionization and Transients Infrared Camera (RATIR;\nwww.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio\nAstron��mico Nacional on Sierra San Pedro M��rtir from 2014/10 26.26 to\n2014/10 26.52 UTC (21.27 to 21.55 days after the BAT trigger),\nobtaining a total of 4.98 hours exposure in the r, i and z bands.\n\nWe continue to detect the source reported in previous epochs of RATIR\nobservations (Littlejohns, et al., GCN 16937, Littlejohns, et al., GCN\n16887), with the following detections and upper limit:\n\n  r     23.94 +/- 0.20\n  i     23.38 +/- 0.15\n  z     > 20.97\n\nThese magnitudes are in the AB system and are not corrected for Galactic\nextinction in the direction of the GRB. These magnitudes are broadly\nconsistent with our previous epoch of observations (Littlejohns, et al.,\nGCN 16937). Further observations are planned.\n\nWe thank the staff of the Observatorio Astron��mico Nacional in San Pedro\nM��rtir.",
  "circularId": 16963,
  "createdOn": 1414351413000,
  "email": "olittlej@asu.edu",
  "subject": "GRB 141004A: Continued RATIR Late Time Optical and NIR Observations",
  "submitter": "Owen Littlejohns at Az State U  <olittlej@asu.edu>",
  "eventId": "GRB 141004A"
}