GCN Circular 17452
P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: The XRT began observing the field at 11:03:12.7 UT, 353.7 seconds after the BAT trigger. Due to passage of the spacecraft through the South Atlantic Anomaly, no XRT data were collected until T0+1805 s. Using promptly downlinked data we find an uncatalogued X-ray source located at RA, Dec 285.48092, 47.36602 which is equivalent to: RA(J2000) = 19h 01m 55.42s Dec(J2000) = +47d 21' 57.7" with an uncertainty of 4.3 arcseconds (radius, 90% containment). This location is 176 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. We cannot determine whether the source is fading at the present time. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 5.20 x 10^20 cm^-2 (Willingale et al. 2013). This circular is an official product of the Swift-XRT team.