GCN Circular 43368
Subject
EP260110a: KAIT optical upper limit
Event
Date
2026-01-11T06:29:36Z (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, observed the field of EP260110a (Zhang et al.,
GCN 43363; 43367) starting at 12:19, Jan 10 UT, about 21 minutes
after the burst. A set of 20s, 40s and 60s clear (roughly R) filter
images were obtained. In our coadd image, we did not detect any new
source within the EP-WXT error circle (Zhang et al., GCN 43367) down
to a limiting mag of 21.0 mag (Vega) at a mid-time of 1.0 hours after
the burst. Our result is consistent with the upper limit reported
by other groups (Perez-Garcia et al., GCN 43364; Kang et al., GCN
43365; Antier et al., GCN43366).