{
  "bibcode": "2015GCN.17429....1S",
  "body": "B. Sbarufatti (INAF-OAB/PSU), P.A. Evans (U. Leicester) and M. H. Siegel (PSU) report on behalf of the Swift team.\n\nSwift took a second epoch of data for the LAT/IPN GRB 150202B (Axelsson et al. GCN Circ. 17385, Hurley et al. GCN Circ. 17398) between T+515.2 ks and T+516.4 ks, with a 1.2 ks exposure time. \nOf the two unknown sources reported by Sbarufatti et al. (GCN 17405), Source #2 is still detected at a level of 8.4E-3 counts/s (3.7E-13 erg cm^-2 s^-2), comparable with the previous observation, while Source #1 has faded below detection, to a 3-sigma upper limit of 4.8E-3 counts/s (1.6E-13 erg cm^-2 s^-1).\nWe therefore confirm that Source #1 is the X-ray afterglow of GRB 150202B.\n\nThe results of the XRT-team automatic analysis of the likely afterglow\nare at http://www.swift.ac.uk/xrt_products/TILED_GRB00039/index_1.php.\nThe results of the full analysis of the XRT observations are available\nat http://www.swift.ac.uk/xrt_products/TILED_GRB00039/.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 17429,
  "createdOn": 1423508950000,
  "email": "boris.sbarufatti@brera.inaf.it",
  "subject": "GRB 150202B: Swift/XRT afterglow confirmation",
  "submitter": "Boris Sbarufatti at INAF-OAB/IASFPA  <boris.sbarufatti@brera.inaf.it>",
  "eventId": "GRB 150202B"
}