GCN Circular 37923

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

We observed the field of GRB 241025A (Ambrosi et al. GCN 37859
Not found
 
 
;
The Fermi GBM team, GCN 37860
Not found
 
 
; Godwin, GCN 37886
Not found
 
 
)
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 27,
19:33:44--20:42:52 UT (t_mid - T0 = 2.7719 days).

The OT (Ambrosi et al., GCN 37859
Not found
 
 
; Jiang et al., GCN 37862
Not found
 
 
;
Pereyra et al., GCN 37865
Not found
 
 
; Xu et al., GCN 37866
Not found
 
 
; SVOM/VT team,
GCN 37871
Not found
 
 
; Abdi et al., GCN 37882
Not found
 
 
; Watson et al., GCN 37889
Not found
 
 
;
Mohan et al., GCN 37890
Not found
 
 
; Vinko et al., GCN 37891
Not found
 
 
; Gupta et al.,
GCN 37893
Not found
 
 
; Pankov et al., GCN 37912
Not found
 
 
; Moskvitin and Spiridonova,
GCN 37914
Not found
 
 
; Klingler and Ambrosi, GCN 37919
Not found
 
 
) is clearly detected
in our stacked frame with the brightness of R = 22.98 +/- 0.11
(R_lim = 24.1).

This preliminary photometry is based on nearby USNO-B1.0 stars
and not corrected for the Galaxy extinction.