GCN Circular 18933
Subject
GRB 160121A: TSHAO optical observation
Date
2016-01-24T21:29:54Z (8 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), I. Reva (Fesenkov Astrophysical Institute), A. Kusakin
(Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI)
report on behalf of a larger GRB follow-up collaboration:
We observed the field of the Swift GRB 160121A (Hagen et al., GCN
18912) with Zeiss-1000 (East) 1-m telescope of Tien Shan Astronomical
Observatory starting on Jan. 22 (UT) 16:17:07. We obtained several
images in R filter. We do not detect afterglow (Oates et al., GCN
18917; Mazaeva et al., GCN 18920) in a combined image. Preliminary upper
limit is following
Date UT start t-T0 Filter Exp. OT UL (3 sigma)
(mid, days) (s)
2015-01-22 16:17:07 1.13572 R 30*180 n/d 21.2
The photometry is based on nearby USNO-B1.0 stars (see GCN 18920).