GCN Circular 37306
Subject
GRB 240825A: GMG Continued Optical Observation on the Second Night
Date
2024-08-27T02:34:35Z (a month ago)
From
wangbaiting@ynao.ac.cn
Via
Web form
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.