{
  "bibcode": "2021GCN.30341....1D",
  "body": "Antonino D'A�� (INAF-IASFPA) & Aaron Tohuvavohu (Uni. Toronto) \nreport on behalf of the Swift-XRT team:\n\nSwift-XRT has performed further follow-up observations of the\nFermi/GBM (von Kienlin GCN 30340) and Swift/BAT-GUANO detected burst \nGRB 210626A (Tohuvavohu et al., GCN Circ. 30325), collecting 7.9 ks \nof Photon Counting (PC) mode data between T0+29.7 ks and T0+143 ks.\n\nThe X-ray source detected in the first 1.4 ks of data as possible \nGRB afterglow candidate  (Perri et al. GCN 30329)  has faded more \nthan 3 sigma in the  latest observation, and it is thus confirmed as the \nX-ray afterglow of the burst.\n\nThe results of the full analysis of the XRT observations are available\nat https://www.swift.ac.uk/xrt_curves/00021453/.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 30341,
  "createdOn": 1624907254000,
  "email": "antonino.dai@inaf.it",
  "subject": "GRB 210626A: Swift/XRT afterglow confirmation",
  "submitter": "Antonino D'Ai at IASF-PA  <antonino.dai@inaf.it>",
  "eventId": "GRB 210626A"
}