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GCN Circular 16448

Subject
GRB 140622A: iTelescope.Net T11 Optical Observation
Date
2014-06-24T11:00:15Z (10 years ago)
From
Takanori Sakamoto at AGU <tsakamoto@phys.aoyama.ac.jp>
D. Kawamura, T. Sakamoto, A. Yoshida (AGU)

We observed the field of GRB 140622A detected by Swift (trigger #602278; 
D'Elia et al., GCN Circ. 16433) with the iTelescope.Net (http://www.itelescope.net) 
T11 (0.51 m Planewave) telescope located at the New Mexico Skies Observatory 
(NM, USA).  

60 images of 60 sec exposures were taken in the R filter starting from June 22 09:50:33 (UT) 
about 14.5 minutes after the trigger and stopped on June 22 11:01:25 (UT).  We do not detect 
the optical afterglow both in the individual images and the stacked image at the enhanced X-ray 
afterglow position (Osborne et al., GCN Circ. 16434).  The estimated five sigma upper limit of 
the combined image (total exposure of 3600 sec) is ~18.5 using the USNO-B1 catalog.
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