{
  "bibcode": "2016GCN.19138....1S",
  "body": "T. Sakamoto, Y. Kitaoka, A. Yoshida (AGU) \n\nWe observed the field of GRB 160303A detected by Swift (trigger #677495;\nBeardmore et al., GCN Circ. 19126) with the iTelescope.Net (http://www.itelescope.net) \nT21 (Plane Wave 17\" CDK) telescope located at the New Mexico Skies Observatory \n(NM, USA).  \n\n15 images of 60 sec exposures were taken in the R filter starting from March 3 11:19:26 (UT) \nabout 25 minutes after the trigger and stopped on March 3 11:38:20 (UT).  \nWe do not detect the optical afterglow both in the individual images and the stacked image \nat the X-ray and the optical afterglow position (Evans et al., GCN Circ. 19132; \nButler et al., GCN Circ. 19131).  The estimated five sigma upper limit of the combined \nimage (total exposure of 900 sec) is ~18.3 using the USNO-B1 catalog.",
  "circularId": 19138,
  "createdOn": 1457058370000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 160303A iTelescope observation",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 160303A"
}