[vsnet-grb-info 17467] GRB 160117B: Early iTelescope observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18894
SUBJECT: GRB 160117B: Early iTelescope observation
DATE:    16/01/19 04:56:17 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto at phys.aoyama.ac.jp>

L. Izzo (URoma1/ICRA), T. Sakamot (AGU)

We observed the field of GRB 160117B (Sonbas et al., GCN 18875; Evans et al., GCN 18883; 
Yurkov et al., GCN 18877; Kruehler et al., GCN 18878; Malesani et al., GCN 18884; 
Hentunen et al., GCN 18885) with the iTelescope.Net (http://www.itelescope.net) 
T17 (Plane Wave CDK 0.43m) telescope located at the Siding Spring Observatory (Australia).  
A single image of 300 s was taken in the R filter, starting at 14:10:03 UT, 636 s 
after the GRB trigger. We detect the GRB optical afterglow candidate and obtain 
a photometry estimate of R = 17.523 +- 0.126 using the USNO-B1 catalog.  

An image of the field of view can be seen at http://goo.gl/aesww1