TITLE:   GCN CIRCULAR
NUMBER:  36601
SUBJECT: GRB 240529A: continued SAO RAS optical observations
DATE:    24/06/03 02:31:13 GMT
FROM:    Moskvitin Alexander at SAO RAS <mosk@sao.ru>

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

We observed the field of the GRB 240529A (Eyles-Ferris et al.
GCN 36556; Osborne et al. GCN 36557; Joshi et al. GCN 36560;
Dichiara et al. GCN 36564; Markwardt et al. GCN 36566; Tan et al.
GCN 36578; Kozyrev et al. GCN 36583; Svinkin et al. GCN 36584)
with the SAO RAS 1m telescope Zeiss-1000 equipped with CCD-photometer.
We obtained 11 x 300 sec frames in the Rc band on June 2, 23:09:06 --
June 3, 00:12:47 UT (t_mid - T0 = 4.8628 days).

The OT (Kumar et al. GCN 36559; Fu et al. GCN 36561; Shilling et al.
GCN 36562; Perez-Garcia et al. GCN 36563; Dutton et al. GCN 36568;
Mo et al. GCN 36569; Odeh et al. GCNs 36573, 36592;
de Ugarte Postigo et al. GCN 36574; Adami et al. GCN 36575;
Mohan et al. GCN 36576; Vinko et al. GCN 36577;  Lim et al. GCN 36579;
Moskvitin et al. GCNs 36582, 36597; Pankov et al. GCN 36585;
Ror et al., 36589; Hu et al. GCN 36599) is clearly detected
in the stacked frame almost with the same brightness as the day before
R = 20.72 +/- 0.09.

The magnitudes were calibrated using R2 magnitudes of nearby USNO-B1.0
stars.