{
  "bibcode": "2018GCN.23472....1P",
  "body": "F.Pintore, S.Mereghetti (IASF-Milano), D.Gotz (CEA, Saclay),  C.Ferrigno,\nE.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC,\nVersoix)\nand J.Borkowski (CAMK, Torun) report:\n\nSwift/XRT observed the position of GRB181201A on 1 December 2018 from 6:33\nUT to 7:06 UT (GCN #23471), in PC mode.\n\nThe XRT data show that the X-ray source reported by Mereghetti et al. (GCN\nCirc. n. 23471 ) is fading and has  an average spectrum well modelled by a\nsingle absorbed powerlaw. The best-fit parameters are: column density of (6\n+\\- 2)x10^20 cm-2, consistent with the Galactic column density (5.2e20\ncm-2, Willingale et al.2013),  photon index of 1.76 +\\- 0.08. The average\n0.3-10 keV absorbed flux is (1.06 +\\- 0.06)x10^-10 erg cm-2 s-1.\n\nThe time decay is well modeled with a power law of index 1.2 +\\- 0.1",
  "circularId": 23472,
  "createdOn": 1543666357000,
  "email": "sandro.mereghetti@inaf.it",
  "subject": "GRB 181201A: Swift-XRT afterglow",
  "submitter": "Sandro Mereghetti at IASF-Milano/INAF  <sandro.mereghetti@inaf.it>",
  "eventId": "GRB 181201A"
}