{
  "bibcode": "2016GCN.20234....1T",
  "body": "Eleonora Troja (GSFC), Nat Butler (ASU), Alan M. Watson (UNAM),\nAlexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer\n(UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB),\nAntonino Cucchiara (UVI), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz\n(UCSC), Jos�� A. de Diego (UNAM), Leonid Georgiev (UNAM), Jes��s Gonz��lez\n(UNAM), Carlos Rom��n-Z����iga (UNAM), Neil Gehrels (GSFC), Harvey Moseley\n(GSFC), John Capone (UMD), V. Zach Golkhou (ASU), and Vicki Toy (UMD)\nreport:\n\nWe observed the field of GRB 161202A (Sbarufatti, et al., GCN 20227;\nVianello & Longo, GCN 20229) with the Reionization and Transients\nInfrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson\nTelescope at the Observatorio Astron��mico Nacional on Sierra San Pedro\nM��rtir from 2016/12 4.08 to 2016/12 4.31 UTC (26.70 to 32.11 hours after\nthe BAT trigger), obtaining a total of 3.34 hours exposure in the r and i\nbands and 1.45 hours exposure in the Z, Y, J, and H bands.\n\nFor a source within the Swift-XRT error circle (Burrows, et al., GCN 20231)\nin comparison with the SDSS DR9 and 2MASS catalogs, we obtain the following\nupper limits (3-sigma):\n\n   r    > 24.0\n   i    > 23.9\n   Z    > 23.1\n   Y    > 22.8\n   J    > 22.4\n   H    > 22.0\n\nThese magnitudes are in the AB system and are not corrected for Galactic\nextinction in the direction of the GRB.\n\nWe thank the staff of the Observatorio Astron��mico Nacional in San Pedro\nM��rtir.",
  "circularId": 20234,
  "createdOn": 1480870988000,
  "email": "eleonora.troja@nasa.gov",
  "subject": "GRB 161202A: RATIR Optical and NIR Observations",
  "submitter": "Eleonora Troja at GSFC  <eleonora.troja@nasa.gov>",
  "eventId": "GRB 161202A"
}