{
  "submitter": "SVOM_group <svomgroup@bao.ac.cn>",
  "format": "text/plain",
  "eventId": "GRB 260726A",
  "body": "Yifang Liang(PMO), Wenjin Xie (NAOC), Ruizhi Li (YNAO), Ziming Wang (BNU), Clara Plasse (HKU) report on behalf of the SVOM mission team:\n\nAt 2026-07-26T23:45:23 UTC (T0), SVOM/ECLAIRs triggered and located the gamma-ray burst GRB 260726A (SVOM burst-id sb26072614), which was also detected by Fermi/GBM (Fermi GBM team, GCN 45218).\n\nThe following trigger information was received on the ground with low latency by the SVOM VHF Alert Network.\n\nThe burst was detected both by the Count-Rate Trigger (CRT) and the Image Trigger (IMT), which produced a sequence of 13 alerts. IMT provided the alert with the best signal-to-noise-ratio in the image (SNR) of 14.47 in the [8-50] keV energy band over a time window of 40.96 seconds starting at 2026-07-26T23:45:03.\n\nThe localization of the best alert is R.A., Dec. 356.3179, 53.1360 degrees (J2000) with a 90% confidence level (C.L.) radius of 5.68 arcmin (including systematic error of 2 arcmin added in quadrature).\n\nThis burst was also detected by SVOM/GRM.\n\nSVOM slewed to the burst. MXT and VT began observing the field after the slew. The analysis of the data will be published in a future circular.\n\nThe Space-based multi-band astronomical Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA), French Space Agency (CNES), and the Chinese Academy of Sciences (CAS), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. SVOM/ECLAIRs was developed jointly by CNES, CEA-IRFU, CNRS-IRAP, CNRS-APC. SVOM/GRM was developed by the Institute of High Energy Physics (IHEP) of CAS. SVOM/MXT was developed jointly by CNES, CEA-IRFU, CNRS-IJCLab, University of Leicester, MPE.\n\nThe Burst Advocate (BA) on shift for this alert is Rui-Zhi Li: liruizhi@ynao.ac.cn\nPlease contact the BA by email if you require additional information.\n",
  "subject": "GRB 260726A: SVOM detection of a burst",
  "createdOn": 1785111818282,
  "submittedHow": "web",
  "bibcode": "2026GCN.45219....1L",
  "circularId": 45219
}