{
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
  "subject": "GRB 241212A: Swift-XRT observations",
  "bibcode": "2024GCN.38579....1P",
  "eventId": "GRB 241212A",
  "submittedHow": "email",
  "circularId": 38579,
  "createdOn": 1734331361979,
  "body": "M. Perri (SSDC & INAF-OAR), V. D'Elia (SSDC & INAF-OAR), B. Sbarufatti\n(INAF-OAB), D.N. Burrows (PSU), M. A. Williams (PSU), S. Dichiara\n(PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester) and P.A.\nEvans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the\nSVOM/ECLAIRs-detected burst GRB 241212A, collecting  2.3 ks of Photon\nCounting (PC) mode data between T0+257.0 ks and T0+297.7 ks. \n\nNo X-ray sources have been detected within the estimated 3-sigma\nSVOM/ECLAIRs error region (118 arcsec). The 3-sigma upper limit in the\nfield is 0.004 ct  s^-1, corresponding to a 0.3-10 keV observed flux of\n1.4e-13 erg cm^-2 s^-1 (assuming a typical GRB spectrum).\n\nAn uncatalogued was detected, however this was too far from the GRB\nposition to be the afterglow.\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/00021740.\n\nThis circular is an official product of the Swift-XRT team.\n\n"
}