TITLE:   GCN CIRCULAR
NUMBER:  17113
SUBJECT: GRB 141121A: Khureltogot optical observations
DATE:    14/11/28 22:40:39 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

E. Mazaeva (IKI), S. Schmalz (AIP), N. Tungalag (Research Center of 
Astronomy and Geophysics MAS),  A. Volnova (IKI), I.Molotov (KIAM), A. 
Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:

We observed the field of We observed the field of GRB 141121A (Lien et 
al., GCN 17075) with ORI-40 telescope of Khureltogot observatory. We 
obtained several images in R-filter on Nov. 21 starting on (UT) 
17:07:01.  In a combined image we marginally detect optical afterglow 
(Tanga et al., GCN 17078; Perley et al., GCN 17081). Preliminary 
photometry is following and based on nearby SDSS DR9 stars:

date        UT start  t-T0       Filter  Exp.   OT    OT_err
                       (mid, days)          (s)


2014-11-21  17:07:01  0.5977     R      120*60  19.0  0.3