{
  "bibcode": "2024GCN.38570....1B",
  "subject": "GRB 241213B: Swift-XRT observations",
  "body": "A.P. Beardmore (U. Leicester), M. Capalbi (INAF-IASFPA), M. Perri (SSDC\n& INAF-OAR), V. D'Elia (SSDC & INAF-OAR), J.A. Kennea (PSU), D.N.\nBurrows (PSU), M. A. Williams (PSU), J.P. Osborne (U. Leicester) and\nP.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the MAXI-detected\nburst GRB 241213B in a series of observations tiled on the sky.  The\ntotal exposure time is\t2.2 ks, distributed over 7 tiles; the maximum\nexposure at a single sky location in the tiling was 822 s. The data\nwere collected between T0+54.1 ks and T0+60.2 ks, and are entirely in\nPhoton Counting (PC) mode. \n\nOne uncatalogued X-ray source has been detected, it is below the RASS\nlimit and shows no definitive signs of fading. Therefore, at the\npresent time we cannot confirm this as the afterglow. Details of this\nsource are given below:\n\nSource 1:\n  RA (J2000.0):  331.7177  =  22:06:52.25\n  Dec (J2000.0): +4.0971  =  +04:05:49.6\n  Error: 9.0 arcsec (radius, 90% conf.)\n  Count-rate: 0.0185 [+0.0089, -0.0068] ct s^-1   \n  Distance: 1169 arcsec from MAXI position.\n  Flux: (1.21 [+0.59, -0.44])e-9 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nThe results of the XRT-team automatic analysis of the tiled XRT\nobservations, including a position-specific upper limit calculator, are\navailable at https://www.swift.ac.uk/xrt_products/TILED_GRB00130.\n\nThis circular is an official product of the Swift-XRT team.\n\n",
  "createdOn": 1734197410749,
  "eventId": "GRB 241213B",
  "submittedHow": "email",
  "circularId": 38570,
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>"
}