{
  "bibcode": "2017GCN.22089....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), Jes��s\nGonz��lez (UNAM), Carlos Rom��n-Z����iga (UNAM), Harvey Moseley (GSFC), John\nCapone (UMD), V. Zach Golkhou (U. Wash.), and Vicki Toy (UMD) report:\n\nWe observed the field of GRB 171102B (Ukwatta, et al., GCN 22082) 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 2017/11 3.14 to 2017/11 3.20 UTC (11.99 to\n13.55 hours after the BAT trigger), obtaining a total of 0.98 hours\nexposure in the r and i bands and 0.42 hours exposure in the Z, Y, J, and H\nbands.\n\nFor a source within the Swift-XRT error circle (Osborne, et al., GCN\n22084), in comparison with the USNO-B1 and 2MASS catalogs, we obtain the\nfollowing upper limits (3-sigma):\n\n r > 22.51\n i > 22.59\n Z > 21.14\n Y > 21.53\n J > 21.36\n H > 20.97\n\nThese magnitudes are in the AB system and are not corrected for Galactic\nextinction in the direction of the GRB.",
  "circularId": 22089,
  "createdOn": 1509721453000,
  "email": "natbutler@asu.edu",
  "subject": "GRB 171102B: RATIR Optical and NIR Observations",
  "submitter": "Nat Butler at Az State U  <natbutler@asu.edu>",
  "eventId": "GRB 171102B"
}