[vsnet-grb-info 15225] GRB 140629A, Optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  16517
SUBJECT: GRB 140629A, Optical observations
DATE:    14/07/04 04:08:29 GMT
FROM:    Shashi Bhushan Pandey at ROTSE  <shaship at umich.edu>

S. B. Pandey and Brajesh Kumar (ARIES Nainital India,on behalf of larger
Indian GRB collaboration)

We observed the Swift GRB 140629A field (Lien et al., GCNC 16477) using
1.04m ST telescope at ARIES Nainital. Observations were started at 17:40:59
UT on 2014-06-29 (approximately 3.4 h after the burst). Several frames
with an exposure time of 300 s each in R_c and I_c bands were obtained in

good sky conditions.

The optical counterpart of GRB 140629A (Lien et al., GCNC 16477;

Yurkov et al., GCNC 16478; Bikmaev et al., GCNC 16482; Masi, GCNC

16483; ) is clearly detected  in each individual frames.


Preliminary photometry is following:
-----------------------------------------------
   UT          Exp_time     Filter     Mag

------------------------------------------------

17:40:59       300 s         R_c     18.01  +- 0.05

17:56:21       300 s         I_c       17.92 +- 0.06

------------------------------------------------


The photometry was performed in comparison to nearby USNO stars.
This massage may be cited