TITLE: GCN CIRCULAR NUMBER: 37345 SUBJECT: GRB 240828B: KAIT optical upper limit DATE: 24/08/29 23:40:38 GMT FROM: Weikang Zheng at UC Berkeley weikang@berkeley.edu
WeiKang Zheng and Alexei V. Filippenko (UCB),
SVOM JSWG: Jian-Yan Wei (NAOC, China), Bertrand Cordier (CEA, F),
Shuang-Nan Zhang (IHEP, CN), Stephane Basa (LAM, F), Jean-Luc Attéia
(IRAP, F), Arnaud Claret (CEA, F), Zi-Gao Dai (USTC, CN), Frederic Daigne
(IAP, F), Jin-Song Deng (NAOC, CN), Andrea Goldwurm (APC, F),
Diego Götz (CEA, F), Xu-Hui Han (NAOC, CN), Cyril Lachaud (APC, F),
En-Wei Liang (GXU, CN), Yu-Lei Qiu (NAOC, CN), Susanna Vergani
(Obs. Paris, F), Jing Wang (NAOC, CN), Chao Wu (NAOC, CN), Li-Ping Xin
(NAOC, CN), Bing Zhang (UNLV, CN)
report on behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, responded to GRB 240828B from the SVOM/ECLAIRs
(Le Provost et al., GCN 37318) by observing the Swift/XRT afterglow
position (Page et al., GCN 37334) starting at 11:05 UT, Aug 29th,
~21.88 hours after the trigger. A set of of 48x60s clear (roughly R)
filter images were obtained. Preliminary analysis do not reveal any
new optical counterpart candidate within the X-ray afterglow error
circles (Page et al., GCN 37334), neither in single image, nor in
the co-add images. We estimate the limiting magnitude of our coadd
image to be ~20.5 mag.
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