{
  "eventId": "GRB 240215A",
  "createdOn": 1709483066232,
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
  "body": "D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U.\nLeicester), A.P. Beardmore (U. Leicester), C. Salvaggio (INAF-OAB), M.\nFerro (INAF-OAB), R. Brivio (INAF-OAB), J. D. Gropp (PSU), S. Dichiara\n(PSU) and P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT\nteam:\n\nSwift-XRT has performed follow-up observations of the\nSwift/BAT-detected burst GRB 240215A in a series of observations tiled\non the sky. The total exposure time is 4.4 ks, distributed over 4\ntiles; the maximum exposure at a single sky location was 2.7 ks. The\ndata were collected between T0+44.5 ks and T0+1384.7 ks, and are\nentirely in Photon Counting (PC) mode. \n\nFour uncatalogued X-ray sources are detected, of which one (\"Source 2\")\nis fading with >3-sigma significance, and is therefore likely the GRB\nafterglow.  The position of this source is RA, Dec=132.0101, -6.5099\nwhich is equivalent to:\n\nRA (J2000): 08:48:2.42\nDec(J2000): -06:30:35.5\n\nwith an uncertainty of 8.1 arcsec (radius, 90% confidence).  This\nposition is 14.9 arcmin from the Swift/BAT position.  The source is\nfading with alpha >0.5.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/00021670.\nThe results of the full analysis of the tiled XRT observations are\navailable at https://www.swift.ac.uk/xrt_products/TILED_GRB00123.\n\nThis circular is an official product of the Swift-XRT team.\n\n",
  "submittedHow": "email",
  "bibcode": "2024GCN.35852....1B",
  "circularId": 35852,
  "subject": "GRB 240215A: Swift-XRT afterglow detection"
}