GCN Circular 45567
Y.Y. Shi (GXU),Z. Kang (CHO), C. Wu (NAOC), L.P. Xin, X.H. Han, P.P. Zhang, X.M. Lu (NAOC), Z.W. Li, Y. Lv (CHO), R.S. Zhang, Y.J. Xiao, Y.L. Qiu, J. Wang, J.S. Deng, L. Huang, J.Y. Wei (NAOC), K. Liu (GXU), Y.N. Ma (NAOC) report on behalf of the SVOM/C-GFT team:
We observed the field of GRB 260914A detected by SVOM/ECLAIRs (Wang et al., GCN 45562) with LATIOS on SVOM/C-GFT. Observations started at 2026-09-14T12:11:29 UTC, ~0.98 hr after the trigger.
The optical candidate (Akl et al., GCN 45564; Palmerio et al., GCN 45565; Li et al., GCN 45566) was faintly detected in our stacked images of band i. The magnitude is:
| [date-obs(mid-time)] | Mid_t-T0(h) | exposure time (s) | band | mag (AB) | mag_err |
|---|---|---|---|---|---|
| 2026-09-14T13:06:45 | 1.9 | 30×90s | i | 20.15 | +/- 0.12 |
The photometry was calibrated against Pan-STARRS1 DR1 catalogue and no correction for Galactic dust extinction was applied.
We thank the observation assistants H.-X. Xue and B.-W. Li at Jilin observatory for their excellent support.
The Chinese Ground Follow-up Telescope (C-GFT) for the SVOM mission is located at Jilin Station, Changchun Observatory, National Astronomical Observatories, CAS. It features two instruments: (1) CATCH at the Cassegrain focus with a 21 arcmin x 21 arcmin FOV for simultaneous g/r/i-band imaging, and (2) LATIOS, a 4k x 4k CMOS camera at the prime focus with a 1.28 deg x 1.28 deg FOV that images in g, r, and i bands via filter switching.