GRB 241025A: SAO RAS optical observations

We observed the field of Swift GRB 241025A (Ambrosi et al. GCN 37859) with the 1-m telescope of SAO RAS equipped with the CCD-photometer. We obtained 12 x 300 sec. images in Rc band on October 26, 19:28:34--20:36:33 UT (t_mid - T0 = 1.7679 days) The OT (Ambrosi et al., GCN 37859; Jiang et al., GCN 37862; Pereyra et al., GCN 37865; Xu et al., GCN 37866; SVOM/VT team, GCN 37871; Abdi et al., GCN 37882; Watson et al., GCN 37889; Mohan et al., GCN 37890; Vinko et al., GCN 37891; Gupta et al., GCN 37893; Pankov et al., GCN 37912) is clearly detected in our stacked frame with the brightness of R = 22.17 +/- 0.09. This preliminary photometry is based on nearby USNO-B1.0 stars and not corrected for the Galaxy extinction.