TITLE: GCN CIRCULAR NUMBER: 38793 SUBJECT: GRB 250101B: SVOM/GRM observation DATE: 25/01/03 13:31:25 GMT FROM: wenlongzhang2018@163.com
SVOM/GRM team: Wen-Long Zhang, Wen-Jun Tan, Chen-Wei Wang, Shi-Jie Zheng, Shao-Lin Xiong, Shuang-Nan Zhang (IHEP),
report on behalf of the SVOM team:
During the commissioning phase, SVOM/GRM detected GRB 250101B at 2025-01-01T23:14:12 UT (T0), which was also observed by Fermi/GBM (Fermi GBM Team, GCN 38766).
With the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of two main pulses with a T90 of 5.27 +/-1.24 s.
This burst is located (from Fermi/GBM) at about 96.02 degrees from the SVOM optical axis, and outside the ECLAIRs field of view.
The GRM light curve can be found here: https://www.bursthub.cn//admin/static/svgrb250101B.png
The Space 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. GRM is developed by the Institute of High Energy Physics (IHEP) of CAS.
The SVOM point of contact for this burst is: Wen-Long Zhang (IHEP)(zhangwl@ihep.ac.cn)
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