{
  "bibcode": "2016GCN.18808....1D",
  "body": "V. D'Elia (ASDC), L. Izzo (URoma/ICRA), L.M. McCauley (PSU), J.A.\nKennea (PSU), B. Sbarufatti (INAF-OAB/PSU), S.L. Gibson (U. Leicester),\nJ.P. Osborne (U. Leicester), A. D'Ai (INAF-IASFPA), A. Maselli \n(INAF-IASFPA) and P.A. Evans (U. Leicester) report on behalf of the\nSwift-XRT team:\n\nSwift-XRT has performed follow-up observations of the MAXI-detected\nburst GRB 160102A (Itoh et al. GCN Circ. 18801) in a series of\nobservations tiled on the sky. The total exposure time is 1.8 ks,\ndistributed over 7 tiles; the maximum exposure at a single sky location\nwas 597 s. The data were collected between T0+10.8 ks and T0+17.0 ks,\nand are entirely in Photon Counting (PC) mode. \n\nNo X-ray sources have been detected. The 3-sigma upper limit in the\nfield (not including the regions where the tiles overlap) ranges from\n~0.03 to ~0.07 ct s^-1, corresponding to a 0.3-10 keV observed flux of\n1.0e-12 to 2.8e-12 erg cm^-2 s^-1 (assuming a typical GRB spectrum).\n\nThe results of the XRT-team automatic analysis of the tiled XRT\nobservations, including a position-specific upper limit calculator, are\navailable at http://www.swift.ac.uk/xrt_products/TILED_GRB00052.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 18808,
  "createdOn": 1451766425000,
  "email": "delia@asdc.asi.it",
  "subject": "GRB 160102A: Swift-XRT observations",
  "submitter": "Valerio D'Elia at ASDC  <delia@asdc.asi.it>",
  "eventId": "GRB 160102A"
}