{
  "bibcode": "2015GCN.17987....1B",
  "body": "D.N. Burrows (PSU), J.A. Kennea (PSU), V. Mangano (PSU), J.P. Osborne\n(U. Leicester), K.L. Page (U. Leicester), C. Pagani (U. Leicester), A.\nMelandri (INAF-OAB), P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC) and P.A.\nEvans (U. Leicester) report on behalf of the Swift-XRT team:\n\nSwift-XRT has conducted further observations of the field of the\nMAXI-detected burst GRB 150622A (Kawakubo et al. GCN Circ. 17952). The\nobservations now extend from T0+14.7 ks to T0+843.1 ks. The source\npreviously reported by Burrows et al. (GCN Circ. 17954), \"Source 1\", is\nfading with 3-sigma significance, and is therefore likely the GRB\nafterglow. Using 483 s of PC mode data and 1 UVOT image, we find an\nenhanced XRT position (using the XRT-UVOT alignment and matching UVOT\nfield sources to the USNO-B1 catalogue): RA, Dec = 252.45633, -52.85017\nwhich is equivalent to:\n\nRA (J2000): 16h 49m 49.52s\nDec(J2000): -52d 51' 00.6\"\n\nwith an uncertainty of 4.1 arcsec (radius, 90% confidence). This\nposition is 16.3 arcmin from the MAXI position.  The source is fading\nwith alpha >0.4.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/00020534.\nThe results of the full analysis of the tiled XRT observations are\navailable at http://www.swift.ac.uk/xrt_products/TILED_GRB00046.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 17987,
  "createdOn": 1435822841000,
  "email": "kpa@star.le.ac.uk",
  "subject": "GRB 150622A: Swift-XRT afterglow detection",
  "submitter": "Kim Page at U.of Leicester  <kpa@star.le.ac.uk>",
  "eventId": "GRB 150622A"
}