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 33223

Trigger 1150965: Swift detection of LS V +44 17
2023-01-26T12:10:56Z (a year ago)
Kim Page at U.of Leicester <>
J.D. Gropp (PSU), J. A. Kennea (PSU), N. P. M. Kuin (UCL-MSSL),
K. L. Page (U Leicester) and T. M. Parsotan (GSFC/UMBC/CRESSTII)
report on behalf of the Neil Gehrels Swift Observatory Team:

At 11:53:14 UT, the Swift Burst Alert Telescope (BAT) triggered and
located LS V +44 17 (trigger=1150965).  Swift did not slew to the source. 
The BAT on-board calculated location is 
RA, Dec 70.258, +44.554 which is 
   RA(J2000) = 04h 41m 02s
   Dec(J2000) = +44d 33' 14"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  The BAT light curve showed a complex
structure with a duration of about 1 sec.  The peak count rate
was ~800 counts/sec (15-350 keV), at ~0 sec after the trigger.
Looking for U.S. government information and services? Visit