TITLE:   GCN CIRCULAR
NUMBER:  43110
SUBJECT: EP251214a: KAIT optical upper limit
DATE:    25/12/15 07:28:01 GMT
FROM:    Weikang Zheng at UC Berkeley <weikang@berkeley.edu>

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 EP251214a (Yin et al.,

GCN 43087; 43102) starting at 08:58, Dec 14 UT, about 6.52 hours

after the burst. A set of 129x60s clear (roughly R) filter images

were obtained. In our coadd image, we did not detect any new source

within the EP-WXT error circle (Yin et al., GCN 43087) down to a

limiting mag of 21.6 mag (Vega) at a mid-time of 8.88 hours after

the burst. Our result is consistent with the upper limit reported

by other groups (Basa et al., GCN 43092; Lipunov et al., GCN 43099).