TITLE:   GCN CIRCULAR
NUMBER:  45898
SUBJECT: GRB 261011A: TRT optical afterglow detection
DATE:    26/10/11 14:55:20 GMT
FROM:    syfu@nao.cas.cn

S.Y. Fu (HUST), K. Noysena, K. Chanchaiworawit, S. Tinyanont (NARIT), J. An, L.B. He, S.Q. Jiang, X. Liu, D. Xu, Z.P. Zhu (NAOC), L. Lei (HUST) report:

We observed the field of GRB 261011A detected by SVOM (Huang et al., GCN 45895) and Swift (Cenko et al., GCN 45896) using the 0.7-m telescope of the Thai Robotic Telescope network (TRT). A series of Sloan r-band frames were obtained.

The optical afterglow is detected at the Swift/UVOT position (Cenko et al., GCN 45896) with r ~ 19.1 at a median time of 37.6 mins after the Swift trigger.

Observations are ongoing.