{
  "createdOn": 1393602466000,
  "eventId": "GRB 140226A",
  "subject": "GRB 140226A/iPTF14yb: RATIR Optical and NIR Observations",
  "email": "antonino.cucchiara@nasa.gov",
  "editedOn": 1731008972634,
  "bibcode": "2014GCN.15892....1C",
  "body": "Antonino Cucchiara (ORAU/GSFC),Nat Butler (ASU), Alan M. Watson (UNAM), \nAlexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), \nChris Klein (UCB), Ori Fox (UCB), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), \nEleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), \nJosé A. de Diego (UNAM), Leonid Georgiev (UNAM), Jesús González (UNAM), \nCarlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC), and Harvey Moseley (GSFC) report:\n\nWe observed again the field of the GRB-like transient iPTF14yb (Cenko et al., GCN 15883, \nBeardmore et al., GCN 15884, 15891) with the Reionization and Transients Infrared Camera\n(RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico \nNacional on Sierra San Pedro  Mártir from 2014/02 28.34 to 2014/02 28.53 UTC (roughly 46 \nto 50 hours after the reported time of discovery), obtaining a total of 2.63 hours exposure \nin the r and i bands and 1.12 hours exposure in the Z and J bands.\n\nFor the source within the Cenko et al. (GCN 15883) error circle, in comparison with the \nSDSS DR9 and 2MASS, we obtain the following detections and upper limits:\n\n  r 23.28 +/- 0.32   \n  i 22.51 +/- 0.20   \n  Z > 22.11   \n  J > 21.73   \n\nThe detections are at the 2-sigma level and the upper limits at the 3-sigma level.\nThese magnitudes are in the AB system and are not corrected for Galactic\nextinction in the direction of the GRB.\n\nOur photometry indicates that the transient is still fading in r band with a similar\ndecay index (within the systematic errors) as reported by Cucchiara et al. (GCN \n15886).\n\nWe thank the staff of the Observatorio Astronómico Nacional in San Pedro \nMártir.\n\n[GCN OPS NOTE(28feb14): Per author's reuqest, the Y & H bands were removed\nfrom the last sentence in the first paragraph.]",
  "editedBy": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "circularId": 15892,
  "version": 2,
  "submitter": "Antonino Cucchiara at NASA/GSFC  <antonino.cucchiara@nasa.gov>",
  "format": "text/plain"
}