TITLE: GCN CIRCULAR NUMBER: 7895 SUBJECT: GRB 080623: Swift XRT prompt analysis DATE: 08/06/23 11:13:13 GMT FROM: Phil Evans at U of Leicester D. Perez (U. Leicester-U. Jaen), K. Page, P. Evans, A. Beardmore (U. Leicester) report on behalf of the Swift XRT Team The XRT began observing the field at 10:47:31.4 UT, 22.0 minutes after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source located at RA, Dec 237.66083, -62.04897 which is equivalent to: RA(J2000) = 15h 50m 38.60s Dec(J2000) = -62d 02' 56.3" with an uncertainty of 3.0 arcseconds (radius, 90% containment). This location is 39 arcseconds from the BAT onboard position, within the BAT error circle. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 2.59e+21 cm^-2 (Kalberla et al. 2005).