{
  "bibcode": "2013GCN.15388....1I",
  "body": "L. Izzo (URoma/ICRA), V. D'Elia (ASDC), P. D'Avanzo, A. Melandri  \n(INAF-OAB), A. Maselli (INAF-IASFPA) report:\n\n\nWe have analysed 8.93 ks of XRT data for Swift Trigger 575905 (Cenko  \net al. GCN Circ. 15384). Two sources were detected at SNR>4, inside a  \nregion of 3 arcmin from the BAT position at the following coordinates:\n\nSource 1 - (1RXS J010222.4+323020)\nRA,Dec = 01h 02m 22.8s, +32� 30' 02.7\"\n\nSource 2\nRA,Dec = 01h 02m 02.6s, +32� 30' 00.9\",\n\nwith an uncertainty of 4.1\" and 4.6\", respectively.\n\nSource 1 matches a catalogued X-ray source (1RXS J010222.4+323020 of  \nthe ROSAT/RASSFSC table is 18\" away), while source 2 is an  \nuncatalogued source, but below the RASS limit.\n\nWe can not say at the present time whether source 2 is fading. The  \ncount rate at the position of Source 2 is (4.3 +/- 1.0) x 10^-3 cts/s.  \nThis corresponds to an observed 0.3-10 keV flux of 1.54 x 10^-13  \nerg/cm2/s (assuming a typical GRB spectrum with photon spectral index  \nof 2). If we consider the Galactic absorption in this direction (5.1 x  \n10^20 cm^-2; Kalberla et al. 2005) this corresponds to an unabsorbed  \nflux of 1.78 x 10^-13 erg/cm2/s.\n\nThe results of the XRT-team automatic analysis are available at:\nhttp://www.swift.ac.uk/possible_GRBs/00575905\n\nThis circular is an official product of the Swift-XRT team.\n\n----------------------------------------------------------------\nThis message was sent using IMP, the Internet Messaging Program.",
  "circularId": 15388,
  "createdOn": 1382807905000,
  "email": "delia@asdc.asi.it",
  "subject": "Swift Trigger 575905/possible GRB 131026A: Swift-XRT observations",
  "submitter": "Valerio D'Elia at ASDC  <delia@asdc.asi.it>",
  "eventId": "GRB 131026A"
}