GCN Circular 19523
J.P. Osborne (U. Leicester), D.N. Burrows (PSU), J.A. Kennea (PSU), G. Tagliaferri (INAF-OAB), S. Campana (INAF-OAB) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team: The XRT began observing the field of GRB 160611A at 22:25:16.5 UT, 2682.1 seconds after the BAT trigger. Using promptly downlinked data we find an uncatalogued X-ray source located at RA, Dec 164.42342, -70.39301 which is equivalent to: RA(J2000) = 10h 57m 41.62s Dec(J2000) = -70d 23' 34.8" with an uncertainty of 3.6 arcseconds (radius, 90% containment). This location is 19 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (1.70 x 10^21 cm^-2, Willingale et al. 2013), with an excess column of 7.6 (+2.39/-2.15) x 10^21 cm^-2 (90% confidence).