TITLE:   GCN CIRCULAR
NUMBER:  38032
SUBJECT: GRB 241030A: further SAO RAS optical observations
DATE:    24/11/01 11:48:47 GMT
FROM:    Moskvitin Alexander at SAO RAS <mosk@sao.ru>

A. S. Moskvitin (SAO RAS) and V. P. Goranskij (SAI MSU)
report on behalf of the GRB follow-up team.

We observed the field of GRB 241030A / EP241030a (Klingler et al.,
GCN 37956; Beardmore et al., GCN 37962; Wang et al., GCN 37972;
Pillera et al., GCN 37979; Ridnaia et al., GCN 37982; Ambrosi et al.,
GCN 37988; Wu et al., GCN 37997; Liang et al., GCN 38026)
with the 1-m telescope of SAO RAS, Zeiss-1000 equipped
with the CCD-photometer on October 31, 17:49:28--18:22:41 UT
(t_mid - T0 = 1.5125 days = 36.3 hours).

The OT (Klingler et al., GCN 37956; Watson et al., GCN 37957;
Fernández-Rodríguez et al., GCN 37958; Zheng et al., GCN 37959;
An et al., GCN 37960; Higuchi et al., GCN 37963; Qiu et al.,
GCN 37965; Lin et al., GCN 37966; Wu et al., GCN 37970;
Breeveld & Klingler, GCN 37974; Méndez-Lapido et al., GCN 37993;
Moskvitin & Goranskij, GCN 38016; Busmann et al., GCN 38019;
Schneider et al., GCN 38021; Li et al., GCN 38027; Masi, GCN 38031)
is clearly detected in our 3 x 600 sec stacked frame in Rc band
with the brightness of R = 20.31 +/- 0.06 (R_lim = 22.6),
calibrated against nearby Pan-STARRS stars (magnitudes converted
with Lupton 2005 equations) and not corrected by MW extinction.