{
  "bibcode": "2016GCN.18907....1C",
  "body": "Antonino Cucchiara(GSFC/STScI),Nat Butler (ASU), Alan M. Watson (UNAM), \nAlexander Kutyrev (GSFC),William H. Lee (UNAM), Michael G. Richer (UNAM), \nOri Fox (UCB), J. Xavier Prochaska (UCSC), Josh Bloom (UCB),  Eleonora \nTroja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), Jos�� A. \nde Diego (UNAM), Leonid Georgiev (UNAM), Jes��s Gonz��lez (UNAM), Carlos \nRom��n-Z����iga (UNAM), Neil Gehrels (GSFC), Harvey Moseley (GSFC), \nJohn Capone (UMD), V. Zach Golkhou (ASU), and Vicki Toy (UMD) report:\n\nWe observed again the field of GRB 160117B (Sonbas et al., GCN 18875)\nwith the Reionization and Transients Infrared Camera (RATIR; www.ratir.org <http://www.ratir.org/>) \non the 1.5m Harold Johnson Telescope at the Observatorio Astron��mico Nacional \non Sierra San Pedro M��rtir from 2016/01 20.21 to 2016/01 20.36 UTC (63.10\nto 66.61 hours after the BAT trigger), obtaining a total of 2.51 hours\nexposure in the r and i bands.\n\nIn comparison with the USNO-B1 and 2MASS catalogs, we\nobtain the following detections:\n\n  r\t23.04 +/- 0.27\n  i\t22.20 +/- 0.12 \n\nAlso, after further analysis of the RATIR full dataset on GRB 160117B \nfrom 2016/01 19.19 to 2016/01 19.36 UTC (38.57 to 42.63 hours after the BAT trigger)\nwe report the following detections in r and i bands: \n\n  r  22.30 +/- 0.11\n  i  21.96 +/- 0.08\n\nThe previously reported, incorrect, limits should not to be considered (GCN 18900).\n\nWe thank the staff of the Observatorio Astron��mico Nacional in San Pedro \nM��rtir. We thank D. Malesani, the NOT, and GROND teams for encouraging \nus to reconsider our earlier observations.",
  "circularId": 18907,
  "createdOn": 1453317317000,
  "email": "antonino.cucchiara@nasa.gov",
  "subject": "GRB 160117B: further RATIR observations",
  "submitter": "Antonino Cucchiara at NASA/GSFC  <antonino.cucchiara@nasa.gov>",
  "eventId": "GRB 160117B"
}