TITLE:   GCN CIRCULAR
NUMBER:  45825
SUBJECT: GRB 261007A: KAIT optical counterpart candidate
DATE:    26/10/07 06:47:42 GMT
FROM:    Weikang Zheng at UC Berkeley <weikang@berkeley.edu>

WeiKang Zheng (UCB), Yun Wang (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 SVOM GRB 261007A (Goto

et al., GCN 45824) starting at 05:43:55, 112 seconds after SVOM

trigger. Observations were performed in 3 x 3 tiling mode, and a

set of clear (roughly R) filter images were obtained. In one of

the fields, we found an optical counterpart candidate at position

of Ra,Dec=(11.6142,-17.6922 degree), which is equal to:


RA = 00:46:27.4  (J2000)

Dec= -17:41:32.0 (J2000).


The candidate decayed from 15.1 mag to 17.2 mag in our observations

separated by ~23 minutes, we suggest this to be the optical

counterpart of GRB 261007A. Observations are on going.