{
  "bibcode": "2020GCN.28512....1B",
  "body": "A.P. Beardmore (U. Leicester) and S. B. Cenko (GSFC) report on\nbehalf of the Swift-XRT team:\n\nAn additional 4.9 ks of Swift-XRT Photon Counting mode data have\nbeen collected on GRB 200925B (Cenko et al.  GCN Circ. 28499,\nSbarufatti et al. GCN Circ. 28508), bringing the total XRT\nexposure to 10 ks, from 87 s to 86.3 ks after the BAT trigger.\nThe late time X-ray light curve from T0+29.2 ks to 86.3 ks\nis now decaying with a power-law decay slope of 1.1 +/- 0.4.\n\nIf the light curve continues to decay at the same rate than\nthe predicted count rate at T0+3 days will be 3.4e-03 count/sec,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of \n1.05 x 10^-13 (1.28 x 10^-13) erg cm^-2 s^-1.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/00997453.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 28512,
  "createdOn": 1601206340000,
  "email": "ab271@leicester.ac.uk",
  "subject": "GRB 200925B: Swift-XRT refined analysis update",
  "submitter": "Andy Beardmore at U Leicester  <ab271@leicester.ac.uk>",
  "eventId": "GRB 200925B"
}