GCN Circular 45549
Subject
GRB 260909A: KAIT optical upper limit
Event
Date
2026-09-10T17:35:32Z (4 days ago)
From
Weikang Zheng at UC Berkeley <weikang@berkeley.edu>
Via
email
WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and
Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, automatically responded to the SVOM GRB
260909A (Saccardi et al., GCN 45534) starting at 11:32:08, 14.1 min
after the burst. Observations were performed in 3 x 3 tiling mode,
and a set of clear (roughly R) filter images were obtained. In one
of the field coving the EP-FXT uncataloged fading X-ray source (Mao
et al., GCN 45543), we did not detect any new source in our clear
coadd images with a limiting mag of ~20.5 at a mid time of 31.5 min
after the burst.