TITLE:   GCN CIRCULAR
NUMBER:  38395
SUBJECT: GRB 241128A: AbAO optical upper limit
DATE:    24/11/30 15:48:32 GMT
FROM:    Alexei Pozanenko at IKI, Moscow <grb.alex@gmail.com>

N. Pankov (HSE), R. Ya. Inasaridze (AbAO), A. Pozanenko (IKI), E. Klunko (ISTP), A. Volnova (IKI),
S.  Belkin (HSE, Monash) report on behalf of GRB IKI FuN:

We observed the field of GRB 241128A (Brivio et al., GCN 38367; Page, GCN
38368; Parsotan et al., GCN 38387) with AS-32 telescope of Abastumani
observatory (AbAO) in R-filter on 2024-11-29 starting (UT) 14:47:06. We do
not detect the afterglow (Hu et al., GCN 38371; Izzo and Malesani, GCN
38372; Gompertz et al., GCN 38373; Akl et al., GCN 38382; Pankov et al.,
GCN 38383). Preliminary photometry of the field is the following

Date UT start t-T0 Exp. Filter OT Err. UL(3sigma)
(mid, days) (s)
2024-11-29 14:47:06 0.96877 85x60 R n/d n/d 20.2

The photometry is based on nearby USNO-B1.0 R2 stars