GCN Circular 46272
Subject
GRB 261114A: Marginal detection with 60cm Panzhihua Telescope
Event
Date
2026-11-14T13:41:50Z (16 hours ago)
From
Jiewei Zhao at SWIFAR, YNU <meow.jiewei.zhao@gmail.com>
Via
Web form
Jiewei Zhao, Xinchao Wang, Brajesh Kumar, Wenyu Li, Guowang Du, Yuanpei Yang (SWIFAR, YNU), Bin-Bin Zhang, Kamil Nadaf (NJU), Kai Liao, Xinyu Wang, Xing Yao, Yang Zeng and Chunlai Zhang (SSO) report on behalf of a larger collaboration:
We observed the GRB 261114A field detected by SVOM/ECLAIRs (Li et al., GCN 46267). The observations were performed under the moderate sky conditions starting from 2026-11-14T11:29:33.330 (~1.94 hours after the trigger) with the 60cm Panzhihua Telescope located at the Sichuan South Observatory (SSO), China. Several frames with 300s exposure each were acquired in L band. There is a marginal detection of the optical counterpart (Wu et al., GCN 46269) in the stacked image with following magnitude:
MJD (Exp_Start) MAG FILTER EXPTIME
61358.478858 20.88 +/- 0.29 L 12 x 300s
Here we note that during the observations, the target was at a low altitude and moderate weather conditions, thus the result should be considered carefully. Also, the expected Galactic extinction is not applied in these estimates.