[vsnet-grb-info 12129] GRB 120716A: optical observation in CrAO

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13518
SUBJECT: GRB 120716A: optical observation in CrAO
DATE:    12/07/25 19:24:53 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

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

We observed the region of  optical afterglow (Cenko et al., GCN 13489)  of 
IPN localized GRB 120716A (Hurley et al., GCN 13487)  with AZT-11 telescope 
of CrAO observatory starting on July 19  (UT) 18:51 under seeing  of about 
3.3 arsces.   We do not detected  optical afterglow  up to R=20.8. The 
photometry is based on the  USNO-B1.0 star 0996-0576906 (20 52 01.46 +09 36 
17.8)  assuming R=15.97:

T0+        Filter,  Exposure, OT,  uplim (3 sigma)
(mid, d)             (s)

 2.0972       R     22x180      n/d     20.8