[vsnet-grb-info 26354] GRB 200919A: Swift detection of a burst

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28454
SUBJECT: GRB 200919A: Swift detection of a burst
DATE:    20/09/19 02:00:19 GMT
FROM:    David Palmer at LANL  <palmer at lanl.gov>

T. N. Ukwatta (LANL), D. N. Burrows (PSU), V. D'Elia (SSDC),
S. Laha (GSFC/UMBC/CRESST), D. M. Palmer (LANL), B. Sbarufatti (PSU)
and A. Tohuvavohu (U Toronto) report on behalf of the Neil Gehrels
Swift Observatory Team:

At 01:52:20 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 200919A (trigger=996503).  Swift did not slew due to an
observing constraint.  The BAT on-board calculated location is 
RA, Dec 168.916, +32.457 which is 
   RA(J2000) = 11h 15m 40s
   Dec(J2000) = +32d 27' 25"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  The BAT light curve showed a single complex peak
structure with a duration of about 40 sec.  The peak count rate
was ~1600 counts/sec (15-350 keV), at ~0 sec after the trigger. 

Due to a Sun observing constraint, Swift cannot slew to the BAT
position until 05:40 UT on 2020 October 10. There will thus be no XRT
or UVOT data for this trigger before this time. 

Burst Advocate for this burst is T. N. Ukwatta (tilan.ukwatta AT gmail.com). 
Please contact the BA by email if you require additional information
regarding Swift followup of this burst. In extremely urgent cases, after
trying the Burst Advocate, you can contact the Swift PI by phone (see
Swift TOO web site for information: http://www.swift.psu.edu/)