GCN Circular 15676
Subject
GRB 131231A, Optical Observations
Event
Date
2014-01-04T12:00:42Z (12 years ago)
From
Shashi Bhushan Pandey at ROTSE <shaship@umich.edu>
S.B. Pandey, Brajesh Kumar and Archana Soam (ARIES Nainital India,
on behalf of larger Indian GRB collaboration)
The Fermi-LAT detected GRB 131231A (Sonbas et al., GCN 15640;
Xu et al., GCN 15641) was monitored with the 1.04m and 1.3m
telescopes at ARIES Nainital starting at 2014-01-01 13:15:13 (UT).
Several images in R_c and I_c pass-bands were obtained.
The optical afterglow was clearly detected in individual frames.
The preliminary photometry of the first R_c frame (exposure time
300 sec) yields afterglow magnitude to be 19.2+-0.1 mag.
The nearby USNO stars have been used for calibrate.
This massage may be cited.