GCN Circular 46109
Subject
GRB 261029A : SVOM/GWAC-F60 observations
Event
Date
2026-10-30T09:02:16Z (2 days ago)
From
SVOM_group <svomgroup@bao.ac.cn>
Via
Web form
S.J. Yin (GXU), C. Wu, L.P. Xin, X.H. Han, P.P. Zhang, J.L. Wang (NAOC), Y.Y. Shi, Y.X. Guan, E.W. Liang, X.G. Wang(GXU) report on behalf of the SVOM follow-up team:
We observed the field of GRB261029A detected by SVOM/ECLAIRs (Goto et al., GCN 46072), with the GWAC-F60 at Xinglong Observatory, China. F60 started observing at 2026-10-29T10:41:58.75 UTC in R-band.
The optical counterpart (O'Neill et al., GCN 46073; He et al., GCN 46078; Wang et al., GCN 46079; De et al., GCN 46080; Cotter et al., GCN 46081; Sanchez Alvarez et al., GCN 46083; Yin et al., GCN 46084; Shi et al., GCN 46088; Kang et al., GCN 46090; Ma et al., GCN 46092; De et al., GCN 46093; Novotny et al., GCN 46097; Zhao et al., GCN 46099; Dimple et al., GCN 46101; and Novotny et al., GCN 46102; Rodríguez-Torres et al., GCN 46103;Hua et al., GCN 46104) is detected in our images by F60A. We measure the following magnitudes calibrated against the NOMAD catalog, and not corrected for Galactic extinction:
R = 19.67+/- 0.2 mag (mid-time 9.32 hr after the trigger);
Two 60cm GWAC-F60(A/B) are operated by Guangxi University and NAOC, CAS, at Xinglong Observatory, China. The field of view is 19*19 arcmin.