{
  "bibcode": "2026GCN.44182....1G",
  "submittedHow": "web",
  "subject": "GRB 260402A: SVOM/MXT candidate X-ray afterglow",
  "format": "text/plain",
  "circularId": 44182,
  "submitter": "Diego Gotz at CEA <diego.gotz@cea.fr>",
  "createdOn": 1775128338132,
  "body": "D. Gotz (CEA Saclay) on behalf of the SVOM MXT team reports:\n\nMXT observed the field of GRB 260402A at 10:53:24 U.T., about 23 minutes after the ECLAIRs trigger.\nThe automatic on board software detects a faint source at\n\nR.A.= 170.806 deg (J2000)\nDec.= +63.627 deg (J2000)\n\nwith a R90 uncertainty (incdluding systematics) of 114 arc sec.\n\nThis position is at 4.7 arc min from the ECLAIRs position reported by Tan et al. (GCN 44181).\n\nFurther data will be needed to confirm the afterglow nature of this candidate source.\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 Wenjun Tan: tanwj at ihep.ac.cn.\nPlease contact the BA by email if you require additional information.",
  "eventId": "GRB 260402A"
}