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 7249

Swift-BAT Trigger #302454, correction of GCN notice, update on AX J1749.1-2639
2008-02-04T18:51:01Z (16 years ago)
Jay R. Cummings at NASA/GSFC/Swift <>
J. R. Cummings for the Swift-BAT team

At 08:44:37.44 UT on February 4, BAT triggered on AX J1749.1-2639
(trigger #302454). The source was not identified on board (it is
not in the onboard catalog) and was misidentified in the GCN
notice as GX 3+1. The spacecraft did not slew, because the source
is still in Moon constraint, though it is now out of Sun constraint.

AX J1749.1-2639 continues to increase slowly in brightness (see 
Krimm et al. ATEL #1376) and is now at ~150 milliCrab. The source
will be out of Moon constraint for the Swift narrow field
instruments on February 5.
Looking for U.S. government information and services? Visit