{
  "bibcode": "2022GCN.31644....1B",
  "body": "A.P. Beardmore (U. Leicester), M. Capalbi (INAF-IASFPA), M. Perri (SSDC\n& INAF-OAR), V. D'Elia (SSDC & INAF-OAR), D.N. Burrows (PSU), J. D.\nGropp (PSU), J.A. Kennea (PSU), J.P. Osborne (U. Leicester) and P.A.\nEvans (U. Leicester) report on behalf of the Swift-XRT team:\n\nSwift-XRT has performed follow-up observations of GRB 220219B (Svinkin\net al., GCN Circ. 31624), collecting 3.5 ks of Photon Counting (PC)\nmode data between T0+322.5 ks and T0+369.3 ks. \n\nOne uncatalogued X-ray source has been detected at a position\nconsistent with the GRB optical afterglow candidate\nZTF22aabjpxh/AT2022cva (Ho et al., GCN Circ. 31619). The X-ray source \nis below the RASS limit and shows no definitive signs of fading.\nDetails of this source are given below:\n\nSource 1:\n  RA (J2000.0):  240.91414  =  16:03:39.39\n  Dec (J2000.0): +31.23404  =  +31:14:02.5\n  Error: 2.8 arcsec (radius, 90% conf. [Enhanced position])\n  Count-rate: 0.0250 [+0.0032, -0.0031] ct s^-1   \n  Flux: (1.06 [+0.14, -0.13])e-12 erg cm^-2 s^-1 (observed, 0.3-10 keV)\n\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/00021481.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 31644,
  "createdOn": 1645701522000,
  "email": "pae9@leicester.ac.uk",
  "subject": "GRB 220219B: Swift-XRT observations",
  "submitter": "Phil Evans at U of Leicester  <pae9@leicester.ac.uk>",
  "eventId": "GRB 220219B"
}