TITLE: GCN CIRCULAR NUMBER: 44182 SUBJECT: GRB 260402A: SVOM/MXT candidate X-ray afterglow DATE: 26/04/02 11:12:18 GMT FROM: Diego Gotz at CEA <diego.gotz@cea.fr> D. Gotz (CEA Saclay) on behalf of the SVOM MXT team reports: MXT observed the field of GRB 260402A at 10:53:24 U.T., about 23 minutes after the ECLAIRs trigger. The automatic on board software detects a faint source at R.A.= 170.806 deg (J2000) Dec.= +63.627 deg (J2000) with a R90 uncertainty (incdluding systematics) of 114 arc sec. This position is at 4.7 arc min from the ECLAIRs position reported by Tan et al. (GCN 44181). Further data will be needed to confirm the afterglow nature of this candidate source. The 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. The Burst Advocate (BA) on shift for this alert is Wenjun Tan: tanwj at ihep.ac.cn. Please contact the BA by email if you require additional information. View this GCN Circular online at https://gcn.nasa.gov/circulars/44182. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...