GCN Circular 4644
Subject
Swift BAT Trigger 180151: Swift XRT source detection
Date
2006-02-04T03:24:20Z (18 years ago)
From
David Burrows at PSU/Swift <dxb15@psu.edu>
The Swift satellite slewed at 00:45:26 UT on 4 Feb 2006 to the position of
the BAT trigger 180151 (Retter et al. 2006, GCN 4641), 2990 s after the
trigger. Although it is still not clear whether this trigger is from a
real astrophysical source, we find a faint, possibly fading, and
uncataloged X-ray source at the following position:
RA(J2000) = 6h 54m 3.9s
Dec(J2000) = +71d 48' 39"
The estimated uncertainty is 6 arcseconds. The exposure time was 2.5
ks. This source is 44 arcseconds from the reported BAT position for
trigger 180151.
This position includes the new XRT boresight, but was processed using
proprietary software in an effort to distribute the position as soon as
possible. A more definitive statement of the nature of this source will be
distributed following analysis of the XRT data processed through the normal
XRT pipeline software at the SDC.