Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 17682

GRB 150407A: Swift detection of a possible burst
2015-04-07T19:31:57Z (9 years ago)
David Palmer at LANL <>
GRB 150407A: Swift detection of a possible burst

D. M. Palmer (LANL) reports on behalf of the Swift Team:

At 00:31:10, the Swift Burst Alert Telescope (BAT) detected
a possible source, GRB 150407A (trigger=637342), with marginal
statistical significance, in two consecutive images of 6 minutes 
total duration.
The BAT on-board calculated location is 
RA, Dec 216.603, 38.541 (J2000), which is 
  RA(J2000)  =  14h 26m 25s
  Dec(J2000) =  38d 32' 28"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  As is usual for image triggers, no obvious
variation is visible in the BAT lightcurve.

After ground discovery of this pair of possible detections, a ToO 
observation is planned to search for a counterpart afterglow.
See GCN#17681 for details.
David Palmer   (505)665-6863 (voice)   (505)665-4414 (fax)
Looking for U.S. government information and services? Visit