GCN Circular 37256
Subject
GRB 240824A: KAIT optical upper limit
Date
2024-08-24T04:23:39Z (2 months ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Via
legacy email
WeiKang Zheng and Alexei V. Filippenko (UC Berkeley) report on
behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, responded to the Swift GRB 240824A (Cenko et al.,
GCN 37254) starting at 03:43:04 UT, ~2.67 hours after the burst.
Observations were performed in the clear (roughly R) filter in
twilight condition. A total of 5 x 60s images were obtained. We did
not detect the optical afterglow reported by Dutton et al. (GCN 37255)
in our coadd image, which we estimate the limiting magnitude be ~18.5
mag, indicating the afterglow reported by Dutton et al. (GCN 37255)
has likely faded.