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GCN Circular 23640

Subject
GRB 190106A: Mondy optical observations
Date
2019-01-08T11:50:31Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), E. Klunko (ISTP), A. Pozanenko (IKI), E. Mazaeva (IKI), A. 
Volnova (IKI), I. Reva (FAPI)  report   on behalf of IKI-FuN:

We observed the optical afterglow (e.g. Lipunov  et al.  GCN 23616, Itoh et 
al. GCN 23617, Mao et al. GCN 23618, Reva et al., GCN 23620, Xin et al. GCN 
23622, Quadri et al. GCN 23624, Hu et al. GCN 23627)  of  the GRB 190106A 
(Sonbas et al., GCN 23615)  with AZT-33IK telescope of Sayan observatory 
(Mondy).   We started observations on Jan. 06 (UT) 13:53:44, i.e. 19 minutes 
after burst trigger and continued observations on Jan. 07, Jan. 08  in 
R-filter.    Preliminary light curve obtained on Jan. 06 observation can be 
found in  http://grb.rssi.ru/GRB190106A/GRB190106A_LC_R.png

The photometry is based on nearby SDSS  stars
SDSS-DR12_id              R(Lupton)
J015920.22+235150.7 16.475
J015929.35+235237.5 15.774
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