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GCN Circular 13955

GRB 121108A: Weihai observatory optical observations
2012-11-08T20:02:23Z (12 years ago)
Dong Xu at DARK/NBI <>
D. Xu (DARK/NBI), J.-M. Ai, C. Cao, S.-M. Hu (SDU) report:

We observed the field of GRB 121108A (Ukwatta et al., GCN 13952) using
the 1m telescope located at Weihai, Shandong Province, China.
Observations started at 18:10 UT on 2012-11-08 (i.e., 22 mins after
the BAT trigger) and 4x600s exposures in the R filter were obtained.
No optical source was found within the enhanced XRT error circle down
to a limit of R~20.5 mag (3sigma), calibrated with the USNO B1
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