TITLE:   GCN CIRCULAR
NUMBER:  46109
SUBJECT: GRB 261029A : SVOM/GWAC-F60 observations  
DATE:    26/10/30 09:02:16 GMT
FROM:    SVOM_group <svomgroup@bao.ac.cn>

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.