[vsnet-grb-info 11485] GRB 120119A: optical upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12892
SUBJECT: GRB 120119A: optical upper limit
DATE:    12/01/21 22:00:47 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

V. Rumyantsev, K. Grankin (CrAO),  A. Pozanenko (IKI) on behalf of  larger 
GRB follow up collaboration report:

We observed the field of the Swift GRB 120119A  (Beardmore  et al.,  GCN 
12859) with AZT-11 telescope  of CrAO observatory on Jan. 19. We took 
several  images in R-filter under poor seeing (FWHM ~ 4.4") on Jan.19, 
between (UT) 18:35 - 19:59. We do not detect the OT  (Beardmore et al. GCN 
12859).  Photometry  is  based on USNO-B1.0 star  0809-0167535  (08 00 
04.98 -09 03 55.5) assuming R=16.22:

t-t0             filter      Exp.       UpperLimit
(mid, days)             (s)

0.6347        R       28x180     21.1