TITLE:   GCN CIRCULAR
NUMBER:  23514
SUBJECT: GRB 181201A: continued optical observations in TSHAO and Chilesope
DATE:    18/12/05 20:49:30 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

S. Belkin (IKI),  I. Reva (FAI), A. Pozanenko (IKI), A. Volnova (IKI), 
E. Mazaeva (IKI), A. Kusakin (FAI), M. Krugov (FAI),  D. Buckley (SAAO) 
report on behalf of IKI-FuN follow-up collaboration:

We continue multicolor observations  the   optical afterglow (e.g. 
Podesta et al., GCN  23470; Kong  GCN 23475)  of INTEGRAL GRB 181201A 
(Mereghetti et al., GCN  23469)  with 1m telescopes of TSHAO 
(Zeiss-1000) and Chilescope (RC1000) observatories.    Preliminary 
photometry   is following

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

2018-12-05 01:04:38 3.92822 r'     1200   19.74  0.05   RC-1000
2018-12-05 12:17:22 4.42306 R      2280   19.82  0.07   Zeiss-1000/TSHAO

The photometry is based on the SDSS-DR12 star

SDSS-DR12_id                 g        r        i      R(Lupton)
J211710.81-123706.3         17.191   16.517   16.257  16.296