TITLE:   GCN CIRCULAR
NUMBER:  38925
SUBJECT: EP250108a / AT 2025kg: SAO RAS optical observations
DATE:    25/01/13 21:42:08 GMT
FROM:    Moskvitin Alexander at SAO RAS <mosk@sao.ru>

A. S. Moskvitin and O. I. Spiridonova (SAO RAS),
report on behalf of the GRB follow-up team.

We observed the field of X-ray transient EP250108a detected by EP-WXT 
(Li et al. GCN 38861) with the SAO RAS 1-m telescope Zeiss-1000 
on January 11, 17:34:02--18:47:16 UT (t_mid - T0 = 3.2362 days). 
We obtained 8 x 300 sec images in Rc band.

The OT (Eyles-Ferris, GCN 38878; Zhu et al., GCN 38885; 
Malesani et al., GCN 38902; Kumar et al., GCN 38907; Zhu et al., 
GCN 38908, Levan et al., GCN 38909; Izzo, GCN 38912; Zou et al., 
GCN 38914) is marginally detected in our stacked image 
with the brightness of R = 20.56 +/- 0.27 (calibrated anainst 
nearby USNO-B1 stars and not corrected for the MW extinction).