[vsnet-grb-info 26229] GRB 200829A: Kitab optical upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28329
SUBJECT: GRB 200829A: Kitab optical upper limit
DATE:    20/08/30 21:20:06 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

N. Pankov (HSE), A. Novichonok (Petrozavodsk State University, KIAM), A. 
Zhornichenko (KIAM), A. Pozanenko (IKI), S. Belkin (IKI), E. Mazaeva 
(IKI), A. Volnova (IKI), Sh. Ehgamberdiev (UBAI) report on behalf of 
IKI-GRB-FuN:

We observed the field of a GRB 200829A (Siegel et al., GCN 28307; see 
also Ursi  et al., GCN  28314; Ridnaia et al., GCN  28323; Lesage et 
al., GCN 28326) with Kitab-ISON RC-36  telescope in R-filter. We do not 
detect optical afterglow  (Siegel et al., GCN 28307; Pozanenko et al., 
GCN 28308; Kuin and Siegel, GCN 28311; Lipunov et al., GCN 28315; Vinko 
et al., 28316; Hentunen et al.,  GCN 28318; Zhu et al., GCN 28324; 
Moskvitin et al., GCNs 28322, 28328).  Preliminary photometry of the 
filed is following

Date,      UT start, t-T0,    Exp.,  Filter, OT,   Err.,  UL
                     (mid, days)

2020-08-30  15:57:25 1.08184  3600   R       n/d    n/d   18.8


The photometry is based on nearby USNO-B1.0 star, R2 magnitude

USNO_B10_id      R2
1626-0124132     14.76