{
  "bibcode": "2020GCN.27500....1S",
  "body": "B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU), K.L. Page\n(U. Leicester), A.P. Beardmore (U. Leicester), A. Melandri (INAF-OAB),\nT. Sbarrato (INAF-OAB), P. D'Avanzo (INAF-OAB) and P.A. Evans (U.\nLeicester) report on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the INTEGRAL/SPI-ACS\nand Swift-BAT GUANO detected possible short burst GRB 200405B (James\nDeLaunay et al. GCN Circ. 27497), collecting 5.0 ks of Photon Counting\n(PC) mode data between T0+66.6 ks and T0+80.0 ks. \n\nFour uncatalogued X-ray sources have been detected, however none of\nthem is above the RASS limit or shows definitive signs of fading.\nTherefore, at the present time we cannot identify which, if any, is the\nafterglow. We note that Source 2 lies within the 4 arcmin BAT error\nregion reported in GCN Circ. 27497. Details of these sources are given\nbelow:\n\nSource 1:\n  RA (J2000.0):  62.6009  =  04:10:24.21\n  Dec (J2000.0): -51.4435  =  -51:26:36.5\n  Error: 5.5 arcsec (radius, 90% conf.)\n  Count-rate: (1.87 [+0.90, -0.69])e-3 ct s^-1\t \n  Distance: 530 arcsec from BAT position.\n  Flux: (1.15 [+0.55, -0.43])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\n\nSource 2:\n  RA (J2000.0):  62.8248  =  04:11:17.95\n  Dec (J2000.0): -51.5687  =  -51:34:07.5\n  Error: 6.5 arcsec (radius, 90% conf. [Enhanced position])\n  Count-rate: (3.31 [+1.13, -0.93])e-3 ct s^-1\t \n  Distance: 152 arcsec from BAT position.\n  Flux: (4.1 [+1.4, -1.1])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nSource 3:\n  RA (J2000.0):  62.5137  =  04:10:3.28\n  Dec (J2000.0): -51.4509  =  -51:27:03.3\n  Error: 4.6 arcsec (radius, 90% conf.)\n  Count-rate: (1.96 [+0.97, -0.73])e-3 ct s^-1\t \n  Distance: 684 arcsec from BAT position.\n\nSource 4:\n  RA (J2000.0):  62.6146  =  04:10:27.49\n  Dec (J2000.0): -51.5329  =  -51:31:58.3\n  Error: 4.3 arcsec (radius, 90% conf.)\n  Count-rate: (3.74 [+1.18, -0.99])e-3 ct s^-1\t \n  Distance: 391 arcsec from BAT position.\n  Flux: (1.20 [+0.38, -0.32])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\n\nThe results of the XRT-team automatic analysis of the XRT observations,\nincluding a position-specific upper limit calculator, are available at\nhttps://www.swift.ac.uk/ToO_GRBs/00020979.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 27500,
  "createdOn": 1586186286000,
  "email": "ab271@leicester.ac.uk",
  "subject": "GRB 200405B: Swift-XRT observations",
  "submitter": "Andy Beardmore at U Leicester  <ab271@leicester.ac.uk>",
  "eventId": "GRB 200405B"
}