{
  "circularId": 45884,
  "submittedHow": "web",
  "createdOn": 1791635159435,
  "body": "Y. N. Ma, H. L. Li, L. P. Xin, Y. L. Qiu, C. Wu, Z. H. Yao, J. R. Xu, L. J. Chen, X. H. Han, Y. Xu, J. Wang, P. P. Zhang, W. J. Xie, Y. J. Xiao, H. B. Cai, J. S. Deng, J. Y. Wei (NAOC), J. Palmerio (CEA) report on behalf of the SVOM/VT team. \n\nSVOM/VT performed a Target of Opportunity observation of EP261010a detected by EP/WXT (Li et al., GCN 45880). SVOM/VT began observing the field at 2026-10-10T02:20:41 UTC, 2.033 hours after the trigger, in the VT_B (400nm-650nm) and VT_R (650nm-1000nm) channels simultaneously. \n\nNo uncatalogued candidate was identified in our stacked images within the error box provided by EP/FXT position (Li et al., GCN 45880), compared to the Legacy Survey. \n\nThe following measurements are in AB magnitudes and are not corrected for Galactic extinction:\n\nMid time | Band | Exposure Time |  3-sigma upper limit\n3.21 hr  | VT_B |    44*50 s    |    > 23.4 mag\n2.99 hr  | VT_R |    33*50 s    |    > 23.1 mag\n\nOur results are consistent with MASTER and NOT (Buckley et al., GCN 45881; Zhu et al., GCN 45882).\n\nThe Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. VT was jointly developed by Xi'an Institute of Optics and Precision Mechanics (XIOPM), CAS and National astronomical observatories (NAOC), CAS.",
  "eventType": [
    "X-ray Transient",
    "Optical Transient"
  ],
  "eventId": "EP261010a",
  "format": "text/plain",
  "subject": "EP261010a: SVOM/VT optical upper limits",
  "submitter": "Yinuo Ma <mayn@bao.ac.cn>"
}