GCN Circular 16212
Subject
GRB 140430A: iTelescope.Net T16 Optical Observation
Event
Date
2014-05-04T12:18:49Z (12 years ago)
From
Takanori Sakamoto at AGU <tsakamoto@phys.aoyama.ac.jp>
T. Sakamoto, D. Kawamura, A. Yoshida (AGU)
We observed the field of GRB 140430A detected by Swift (trigger #597722;
Siegel et al., GCN Circ. 16190) with the iTelescope.Net (http://www.itelescope.net)
T16 (15 cm Takahashi TOA-150) telescope located at the AstroCamp Observatory
(Nerpio, Spain).
Due to the elevation constraint, we were able to collect only 4 images of 60 sec
exposures in the R filter starting from April 30 20:46:42 (UT) about 13 minutes
after the trigger and stopped on April 30 20:52:42 (UT). We do not detect the optical afterglow
both in the individual images and the stacked image at the reported optical
afterglow position (Siegel et al., GCN Circ. 16190; Malesani et al., GCN Circ. 16193).
The estimated five sigma upper limit of the combined image (total exposure of 240 sec)
is ~18.6 using the USNO-B1 catalog.