{
  "format": "text/plain",
  "eventId": "GRB 140215A",
  "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\n(ORAU/GSFC), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico\nRamirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús\nGonzález (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and\nHarvey Moseley (GSFC) report:\n\nWe again observed the field of GRB 140215A (Markwardt,, et al., GCN 15837)\nwith the Reionization and Transients Infrared Camera (RATIR; www.ratir.org)\non the 1.5m Harold Johnson Telescope at the Observatorio Astronómico\nNacional on Sierra San Pedro Mártir from 2014/02 17.11 to 2014/02 17.20 UTC\n(46.46 to 48.60 hours after the BAT trigger), obtaining a total of 1.41\nhours exposure in the r and i bands and 0.58 hours exposure in the Z, Y, J,\nand H bands.\n\nFor a source within the Swift-UVOT error circle, in comparison with 2MASS,\nwe obtain the following detections and upper limits (3-sigma):\n\n  r     22.19 +/- 0.24\n  i     21.65 +/- 0.16\n  Z     > 21.45\n  Y     > 20.71\n  J     > 20.61\n  H     > 20.12\n\nThese magnitudes are in the AB system and are not corrected for Galactic\nextinction in the direction of the GRB.  Compared to our observations last\nnight (Littlejohns et al., GCN 15849), the source flux is consistent with a\ncontinued fading as t^-1.\n\n\nWe thank the staff of the Observatorio Astronómico Nacional in San Pedro\nMártir.",
  "subject": "GRB 140215A: Continued RATIR Optical and NIR Observations",
  "circularId": 15855,
  "email": "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>",
  "createdOn": 1392657145000,
  "submitter": "Nat Butler at Az State U  <natbutler@asu.edu>",
  "version": 2,
  "bibcode": "2014GCN.15855....1B",
  "editedOn": 1731005886055
}