GCN Circular 2490
J. A. Tedds (University of Leicester), D. Watson (University of Copenhagen), M. G. Watson, J. Osborne, A. Levan, P.T. O'Brien, S. Vaughan, R. Willingale (University of Leicester) and J. N. Reeves (NASA-GSFC) report: The XMM-Newton EPIC coordinates were refined by matching the X-ray sources in the field to the USNO-A2 catalogue. The cross-correlation is extremely good thanks to the long, clean exposure and yields a final source position (J2000) for the X-ray afterglow (the fading source, S1, GCN 2477) of RA: 08:02:30.190, Dec: -39:51:04.05 The 1 sigma error radius is 0.7" (including the residual 0.5" systematic error from the correlation that is observed in the 1XMM catalogue). This is consistent with the centre of the galaxy (z=0.105) reported by Hsia et al. (GCN 2470) and by Bloom et al. (GCN 2481) and Prochaska et al. (GCN 2482) and can be consistent with the radio source reported by Frail (GCN 2473) if their systematic offset is >~0.5" as suggested by (Soderberg et al. GCN 2483).