Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 6020

Swift-BAT trigger 257213 is a Galactic Center transient
2007-01-22T06:44:58Z (17 years ago)
Scott Barthelmy at NASA/GSFC <>
D. B. Fox (PSU), S. D. Barthelmy (GSFC) and C. B. Markwardt (GSFC/UMD)
report on behalf of the Swift Team:

At 06:12:58 UT, the Swift Burst Alert Telescope (BAT) issued
trigger 257213.  The BAT on-board calculated location is 
RA, Dec 266.265, -28.952 which is 
   RA(J2000)  =  17h 45m 04s
   Dec(J2000) = -28d 57' 05"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  The BAT light curve showed weak emission in 
15-25 keV band.  We note that this position is within 12 arcmin of the
galactic center, and the nature of the emission is consistent with
an X-ray burst.  The GCN system identified this position as X 1745.6-2901. 
However, it could be one of many X-ray bursters in the galactic center
region.  Swift did not slew to this source because it was sun-constrained. 
No further observations are planned.
Looking for U.S. government information and services? Visit