{
  "eventId": "GRB 260102A",
  "body": "M.G. Bernardini (INAF-OAB), S. Dichiara (PSU), J.A. Kennea (PSU), D.N.\nBurrows (PSU), K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester),\nE. Ambrosi  (INAF-IASFPA) , M. Capalbi (INAF-OAR) and P.A. Evans (U.\nLeicester) reports on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of the\nSVOM/ECLAIRs-detected burst GRB 260102A, collecting  2.8 ks of Photon\nCounting (PC) mode data between T0+9.6 ks and T0+26.1 ks. \n\nOne uncatalogued X-ray source has been detected within the estimated\n3-sigma SVOM/ECLAIRs error region (502 arcsec), 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 2:\n  RA (J2000.0):  183.9493  =  12h 15m 47.82s\n  Dec (J2000.0): +48.2506  =  +48d 15' 02.1\"\n  Error: 6.2 arcsec (radius, 90% conf. [Enhanced position])\n  Count-rate: (6.3 [+2.2, -1.8])e-3 ct s^-1   \n  Distance: 167 arcsec from SVOM/ECLAIRs position.\n  Flux: (1.72 [+0.59, -0.48])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\nSVOM/VT detected an optical counterpart consistent with this X-ray\nsource (GCN Circ. 43300).\n\nAn uncatalogued source was also detected, however this was too far from\nthe GRB position 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/00021896.\n\nThis circular is an official product of the Swift-XRT team.\n\n",
  "submittedHow": "email",
  "subject": "GRB 260102A: Swift-XRT observations",
  "bibcode": "2026GCN.43304....1B",
  "circularId": 43304,
  "submitter": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
  "createdOn": 1767364672965
}