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GCN Circular 37267

Subject

GRB 240824B: Swift/BAT arcminute localization of a burst

Date

2024-08-24T21:21:35Z (23 days ago)

From

Jimmy DeLaunay at Penn State <delauj2@gmail.com>

Via

Web form

James DeLaunay (PSU), Aaron Tohuvavohu (U Toronto), Samuele Ronchini (PSU), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC)  report:

Swift/BAT did not localize GRB 240824B onboard (T0: 2024-08-24T13:11:16.7 UTC, Fermi Trigger 746197881, MAXI GCN 37261Not found
 
 
).

In a ground search of a 10 s event file, available due to a subthreshold trigger onboard. The GRB was detected at a S/N of 8.5 in a single 10 s image. The duration in the rates data is ~16 s. 

The BAT position is
RA, Dec =  17.835,  +2.620 deg which is
   RA(J2000)  = 01h 11m 20.4s
   Dec(J2000) = +02d 37′ 12.0″
with an estimated uncertainty of 3 arcmin radius.

XRT and UVOT follow-up has been requested.
Results of follow-up observations will be reported in future circulars.