TITLE: GCN CIRCULAR NUMBER: 37306 SUBJECT: GRB 240825A: GMG Continued Optical Observation on the Second Night DATE: 24/08/27 02:34:35 GMT FROM: wangbaiting@ynao.ac.cn
B.-T. Wang, F.-F. Song, R.-Z. Li, J. Mao, Y.-X. Xin, and J.-M. Bai (YNAO, CAS) report:
We observed the field of GRB 240825A (Gupta et al., GCN 37274, T0 at 2024-08-25T15:52:59) for the second time using the GMG-2.4m telescope at the Lijiang Observatory. The observation began at 2024-08-26T15:14:04, about 23.4 hours after the trigger. A optical counterpart was still observable.
The preliminary analysis results are shown as follows: +----------------+------------+----------+--------------+----------------+ | Tmid-T0 [hr] | Exp. [s] | Filter | Mag | 5-sigma U.L. | +================+============+==========+==============+================+ | 23.4 | 1800 | sdssr |21.34 +/-0.09 | 22.3 | +----------------+------------+----------+--------------+----------------+ We acknowledge the staff at the Lijiang Observatory for their efforts in conducting the observation.
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