{
  "bibcode": "2016GCN.19922....1B",
  "body": "Nat Butler (ASU), Alan M. Watson (UNAM), Alexander Kutyrev (GSFC), William\nH. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier\nProchaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UVI), 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), John\nCapone (UMD), V. Zach Golkhou (ASU), and Vicki Toy (UMD) report:\n\nWe observed the field of GRB 160912A (Cannizzo et al., GCN 19912) with the\nReionization and Transients Infrared Camera (RATIR; www.ratir.org) on the\n1.5m Harold Johnson Telescope at the Observatorio Astron��mico Nacional on\nSierra San Pedro M��rtir from 2016/09 13.14 to 2016/09 13.24 UTC (11.20 to\n13.52 hours after the BAT trigger), obtaining a total of 1.76 hours\nexposure in the r and i bands and 0.74 hours exposure in the Z, Y, J, and H\nbands.\n\nWe detect the optical afterglow reported by Tanvir et al. (GCN 19918).  In\ncomparison with the USNO-B1 and 2MASS catalogs, we obtain the following\ndetections and (3-sigma) upper limits:\n\nr = 23.05 +/- 0.10\ni = 22.73 +/- 0.13\nZ = 22.62 +/- 0.31\nY = 22.13 +/- 0.29\nJ > 21.91\nH > 21.72\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": 19922,
  "createdOn": 1473785404000,
  "email": "natbutler@asu.edu",
  "subject": "GRB 160912A: RATIR Optical and NIR Observations",
  "submitter": "Nat Butler at Az State U  <natbutler@asu.edu>",
  "eventId": "GRB 160912A"
}