TITLE: GCN CIRCULAR NUMBER: 26099 SUBJECT: GRB 191029A: CORRECTED Swift-XRT refined analysis DATE: 19/10/30 09:56:42 GMT FROM: Phil Evans at U of Leicester P.A. Evans and K.L. Page (U. Leicester) report on behalf of the Swift-XRT team: The XRT refined analysis for GRB 191029A, given in GCN 26094 was incorrect. There is an AGN within the BAT error circle and unfortunately the automated light curve and spectral analysis had been performed for this source, rather than the afterglow. The correct refined analysis is below. We apologise for any inconvenience. We have analysed 13 ks of XRT data for GRB 191029A (Evans et al. GCN Circ. 26088), from 3.1 ks to 62.0 ks after the BAT trigger. The data are entirely in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Evans et al. (GCN Circ. 26095). The light curve can be modelled with a power-law decay with a decay index of alpha=0.77 (+0.13, -0.12). A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.81 (+0.23, -0.19). The best-fitting absorption column is 3.4 (+5.3, -1.6) x 10^20 cm^-2, consistent with the Galactic value of 1.8 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.5 x 10^-11 (3.7 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 3.4 (+5.3, -1.6) x 10^20 cm^-2 Galactic foreground: 1.8 x 10^20 cm^-2 Excess significance: <1.6 sigma Photon index: 1.81 (+0.23, -0.19) The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00932058.