[vsnet-grb-info 21521] GRB 190106A : TSHAO optical observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Jan 7 00:29:00 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 23620
SUBJECT: GRB 190106A : TSHAO optical observations
DATE: 19/01/06 15:27:05 GMT
FROM: Alexei Pozanenko at IKI, Moscow <apozanen at iki.rssi.ru>
I. Reva (FAPHI), A. Pozanenko (IKI),
A. Kusakin (FAPHI), S. Belkin (IKI), A. Volnova (IKI), E. Mazaeva
(IKI), M. Krugov (FAPHI) report on behalf of larger GRB follow-up
collaboration:
We observed the optical transient (Yurkov et al., GCN 23614; Sonbas et
al., GCN 23615; Lipunov et al., GCN 23616; Itoh et al., GCN 23617) of
GRB 190106A (Sonbas et al., GCN 23615) with Zeiss-1000 1-m telescope of
Tien Shan Astronomical Observatory starting on Jan. 6 (UT) 13:45:42.
Preliminary photometry of the object in the beginnig of observations is
R= 16.23 +/- 0.05, and the optical transient is faded as R= 17/5 +/- 0.1
at (UT) 14:24:04. (The photometry is based on nearby USNO-B1.0 stars).
Observations are continuing in R and B - filters.
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