GCN Circular 39111

S. Sugita, M. Serino, Y. Kawakubo, H. Hiramatsu, H. Nishikawa, Y. Kondo (AGU)
H. Negoro, M. Nakajima, K. Takagi (Nihon U.),
N. Kawai, T. Mihara, (RIKEN),
report on behalf of the MAXI team:

We examined MAXI/GSC all-sky X-ray images (2-20 keV)
after compact binary merger candidate S250201i at 2025-02-01 02:08:41.292 UTC.

At the trigger time of S250201i, the high-voltage of MAXI/GSC was off,
and it was turned on at T0+844 sec (+14.1 min).
The first one-orbit (92 min) scan observation with GSC after the event covered 98%
of the 90% credible region of the bayestar skymap from 03:09:42 to 03:22:16 UTC (T0+3661 to T0+4415 sec).

No significant new source was found in the region in the one-orbit scan observation.
A typical 1-sigma averaged upper limit obtained in one scan observation
is 20 mCrab at 2-20 keV.

If you require information about X-ray flux by MAXI/GSC at specific coordinates,
please contact the submitter of this circular by email.