TITLE:   GCN CIRCULAR
NUMBER:  34537
SUBJECT: GRB 230824A: Swift detection of a burst
DATE:    23/08/24 14:12:46 GMT
FROM:    K.L. Page at U Leicester <klp5@leicester.ac.uk>


K. L. Page (U Leicester), S. Dichiara (PSU), J.D. Gropp (PSU),
H. A. Krimm (NSF), T. M. Parsotan (GSFC/UMBC/CRESSTII) and
M. A. Williams (PSU) report on behalf of the Neil Gehrels Swift
Observatory Team:

At 13:59:44 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230824A (trigger=1186959).  
The BAT on-board calculated location is 
RA, Dec 261.941, -16.215 which is 
   RA(J2000) = 17h 27m 46s
   Dec(J2000) = -16d 12' 53"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  As is common for image triggers, the BAT 
light curve does not show significant structure.  The duration 
appears to be about 20 sec.  The peak count rate was ~1400 
counts/sec (15-350 keV), at ~6 sec after the trigger. 

Due to a Moon observing constraint, Swift cannot slew to the BAT
position until 09:35 UT on 2023 August 27. There will thus be no XRT or
UVOT data for this trigger before this time. 

Burst Advocate for this burst is K. L. Page (klp5 AT leicester.ac.uk). 
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/)