GCN Circular 15201
Subject
GRB 130907A: T21 optical observations
Date
2013-09-08T22:35:10Z (12 years ago)
From
Veli-Pekka Hentunen at Taurus Hill Obs,A95 <veli-pekka.hentunen@kassiopeia.net>
Veli-Pekka Hentunen, Markku Nissinen, Harri Vilokki and Tuomo Salmi (Taurus
Hill Observatory, Varkaus, Finland) report:
We have detected GRB 130907A optical afterglow at iTelescope observatory
T21 (Mayhill, New Mexico) 0.43-m/6.8 astrograph and FLI-PL6303E CCD.
Six unfiltered images and seven photometric R filter images with 300 sec
were made.
The afterglow was detected at the following position RA 14:23:34.06 and
DEC +45:36:27.1 J2000.
The following magnitudes were obtained from the observations using
NOMAD1 1356-0257141 (R=15.220) as a comparison star:
Tmid(h)+T0 Filter Exp. time Mag Mag err.
4.70 unfiltered 3x300 20.00CR 0.49
5.22 R 7x300 20.06R 0.47
5.77 unfiltered 3x300 20.36CR 0.47